Geometry - 4th Grade Math
Card 1 of 12
Does the black line in the figure represent a line of symmetry?
Does the black line in the figure represent a line of symmetry?
Tap to reveal answer
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
← Didn't Know|Knew It →
What is the length of a room with a perimeter of 
and a width of 
What is the length of a room with a perimeter of
Tap to reveal answer
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract 
from both sides
Divide 
by both sides
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract
Divide
← Didn't Know|Knew It →
Solve for x.
Solve for x.
Tap to reveal answer
To find the value of x we subtract.
To find the value of x we subtract.
← Didn't Know|Knew It →
Does the black line in the figure represent a line of symmetry?
Does the black line in the figure represent a line of symmetry?
Tap to reveal answer
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
← Didn't Know|Knew It →
What is the length of a room with a perimeter of and a width of
What is the length of a room with a perimeter of
Tap to reveal answer
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract from both sides
Divide by both sides
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract
Divide
← Didn't Know|Knew It →
Solve for x.
Solve for x.
Tap to reveal answer
To find the value of x we subtract.
To find the value of x we subtract.
← Didn't Know|Knew It →
What is the length of a room with a perimeter of and a width of
What is the length of a room with a perimeter of
Tap to reveal answer
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract from both sides
Divide by both sides
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract
Divide
← Didn't Know|Knew It →
Does the black line in the figure represent a line of symmetry?
Does the black line in the figure represent a line of symmetry?
Tap to reveal answer
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
← Didn't Know|Knew It →
Solve for x.
Solve for x.
Tap to reveal answer
To find the value of x we subtract.
To find the value of x we subtract.
← Didn't Know|Knew It →
What is the length of a room with a perimeter of and a width of
What is the length of a room with a perimeter of
Tap to reveal answer
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract from both sides
Divide by both sides
We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.
Subtract
Divide
← Didn't Know|Knew It →
Does the black line in the figure represent a line of symmetry?
Does the black line in the figure represent a line of symmetry?
Tap to reveal answer
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
When you are trying to decide if a line represents a line of symmetry you can think about folding the figure across that line. Once you make the fold, do all of the parts line up on top?
If yes, then the line represents a line of symmetry.
If no, then the line does not represent a line of symmetry.
This line represents a line of symmetry because if you fold on the black line, then one side would lay on top of the other and the parts would match up.
← Didn't Know|Knew It →
Solve for x.
Solve for x.
Tap to reveal answer
To find the value of x we subtract.
To find the value of x we subtract.
← Didn't Know|Knew It →