Since Jeff threw the football twice as far as Robby, divide  by .

Since the length of line segment  is half of , convert  to a mixed number. 



Then divide  by .



Then convert  to a mixed number. 

Since the original driveway was half the width of the new driveway, multiply  by .

Since line segment  is half the length of line segment  we need to divide  by .

A line of symmetry divides a shape into two equal and identical halves. Any regular shape has as many lines of symmetry as it does sides. Since octagons have eight sides, the correct answer is 8.

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. 

These lines represent lines of symmetry because if you fold on the black lines, 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. 

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. 

These lines represent lines of symmetry because if you fold on the black lines, 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. 

These lines do not represent lines of symmetry because if you fold on the black lines,  one side will not lay on top of the other with parts that 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 does not represents a line of symmetry because if you fold on the black line,  one side will not lay on top of the other with parts that match up.