How to find the perimeter of a rectangle in pre-algebra - Math
Card 1 of 48
Find the perimeter of a rectangle with a length of 20 inches and a width of 12 inches.
Find the perimeter of a rectangle with a length of 20 inches and a width of 12 inches.
Tap to reveal answer
Add up all of the sides of the rectangle to get 64 inches.
Add up all of the sides of the rectangle to get 64 inches.
← Didn't Know|Knew It →
What is the perimeter of the rectangle?
What is the perimeter of the rectangle?
Tap to reveal answer
The perimeter of a rectangle is the sum of the length of each of the four sides.
Since
substitute each in:
The perimeter of a rectangle is the sum of the length of each of the four sides.
Since
substitute each in:
← Didn't Know|Knew It →
Find the perimeter of a rectangle with length 8 inches and width 10 inches.
Find the perimeter of a rectangle with length 8 inches and width 10 inches.
Tap to reveal answer
To find perimeter, add up all the sides. In a rectangle, there are 2 sets of identical sides so you can multiply the length by 2 and the width by 2 and combine them to get 36 inches.
To find perimeter, add up all the sides. In a rectangle, there are 2 sets of identical sides so you can multiply the length by 2 and the width by 2 and combine them to get 36 inches.
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of 
and a height of 
?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation 
With a base of 
and a height of 
our equation would look like 
Multiply and add the numbers together 
The answer is 
.
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of
Multiply and add the numbers together
The answer is
← Didn't Know|Knew It →
Calculate the perimeter of the polygon.
Calculate the perimeter of the polygon.
Tap to reveal answer
The perimeter is the sum of the length of all of the sides. We are given all of the side lengths in the figure, so we simply need to sum them together.
The perimeter is the sum of the length of all of the sides. We are given all of the side lengths in the figure, so we simply need to sum them together.
← Didn't Know|Knew It →
What is the perimeter of a rectangle if the length is 
and the width is 
?
What is the perimeter of a rectangle if the length is
Tap to reveal answer
The perimeter of a rectangle is 
.
Plug in our given information to solve:
The perimeter of a rectangle is
Plug in our given information to solve:
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of 
and a height of 
?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this, we plug the base and height into the equation 
.
With a base of 
and a height of 
our equation becomes 
.
Multiply and add the numbers together: 
The answer is 
.
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this, we plug the base and height into the equation
With a base of
Multiply and add the numbers together:
The answer is
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of 
and a height of 
?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of 
and a height of 
our equation would look like
Multiply and add the numbers together
The answer is 
.
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of
Multiply and add the numbers together
The answer is
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of 
and a height of 
?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of 
and a height of 
our equation would look like
Multiply and add the numbers together
The answer is 
.
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of
Multiply and add the numbers together
The answer is
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of 
and a height of 
?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle, find the sum of all of the side lengths using the equation:
Substitute the given values for base and height:
To find the perimeter of a rectangle, find the sum of all of the side lengths using the equation:
Substitute the given values for base and height:
← Didn't Know|Knew It →
Rectangle ABCD is subdivided into two identical square regions. If the area of each square is 
, what is the perimeter of ABCD ?
Rectangle ABCD is subdivided into two identical square regions. If the area of each square is
Tap to reveal answer
Given that the area of each square is 
, the side length of each square is 
. To find the perimeter of the entire shape, one must add up the lenghts of the sides of the shape. Thus the sides of the rectangle are each 
, and the bases are 
(because the squares are connected). Adding them all together gives us 
.
Given that the area of each square is
← Didn't Know|Knew It →
A rectangle has a width of 
feet and a length of 
feet. What is the perimeter of the rectangle?
A rectangle has a width of
Tap to reveal answer
Recall that perimeter is the sum of all of the sides of a shape. Thus, we are adding up all sides of the rectangle. A rectangle has two sides that are the length and two sides that are the width. Thus,
feet.
Perimeter is a measure of length, and not area (or square feet), so our units are just feet.
Recall that perimeter is the sum of all of the sides of a shape. Thus, we are adding up all sides of the rectangle. A rectangle has two sides that are the length and two sides that are the width. Thus,
Perimeter is a measure of length, and not area (or square feet), so our units are just feet.
← Didn't Know|Knew It →
What is the perimeter of the rectangle?
What is the perimeter of the rectangle?
Tap to reveal answer
The perimeter of a rectangle is the sum of the length of each of the four sides.
Since
substitute each in:
The perimeter of a rectangle is the sum of the length of each of the four sides.
Since
substitute each in:
← Didn't Know|Knew It →
Find the perimeter of a rectangle with length 8 inches and width 10 inches.
Find the perimeter of a rectangle with length 8 inches and width 10 inches.
Tap to reveal answer
To find perimeter, add up all the sides. In a rectangle, there are 2 sets of identical sides so you can multiply the length by 2 and the width by 2 and combine them to get 36 inches.
To find perimeter, add up all the sides. In a rectangle, there are 2 sets of identical sides so you can multiply the length by 2 and the width by 2 and combine them to get 36 inches.
← Didn't Know|Knew It →
Find the perimeter of a rectangle with a length of 20 inches and a width of 12 inches.
Find the perimeter of a rectangle with a length of 20 inches and a width of 12 inches.
Tap to reveal answer
Add up all of the sides of the rectangle to get 64 inches.
Add up all of the sides of the rectangle to get 64 inches.
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of and a height of ?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of and a height of our equation would look like
Multiply and add the numbers together
The answer is .
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of
Multiply and add the numbers together
The answer is
← Didn't Know|Knew It →
Calculate the perimeter of the polygon.
Calculate the perimeter of the polygon.
Tap to reveal answer
The perimeter is the sum of the length of all of the sides. We are given all of the side lengths in the figure, so we simply need to sum them together.
The perimeter is the sum of the length of all of the sides. We are given all of the side lengths in the figure, so we simply need to sum them together.
← Didn't Know|Knew It →
What is the perimeter of a rectangle if the length is and the width is ?
What is the perimeter of a rectangle if the length is
Tap to reveal answer
The perimeter of a rectangle is .
Plug in our given information to solve:
The perimeter of a rectangle is
Plug in our given information to solve:
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of and a height of ?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this, we plug the base and height into the equation .
With a base of and a height of our equation becomes .
Multiply and add the numbers together:
The answer is .
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this, we plug the base and height into the equation
With a base of
Multiply and add the numbers together:
The answer is
← Didn't Know|Knew It →
What is the perimeter of a rectangle with a base of and a height of ?
What is the perimeter of a rectangle with a base of
Tap to reveal answer
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of and a height of our equation would look like
Multiply and add the numbers together
The answer is .
To find the perimeter of a rectangle you must find the sum of all of the side lengths.
To do this we plug the base and height into the equation
With a base of
Multiply and add the numbers together
The answer is
← Didn't Know|Knew It →