Judith is digging for sandstone at a geological site. She has 160 meters of rope and 4 stakes to mark off a rectangular area. Which set of dimensions will create a rectangle using all the rope Judith has with her?

16 m × 10 m
80 m × 80 m
65 m × 10 m
70 m × 10 m

Question

Judith is digging for sandstone at a geological site. She has 160 meters of rope and 4 stakes to mark off a rectangular area. Which set of dimensions will create a rectangle using all the rope Judith has with her?

 16 m × 10 m
 80 m × 80 m
 65 m × 10 m
 70 m × 10 m

animallover8 · Answer

D

anonymous · Answer

Why?

anonymous · Answer

Essentially, this is one where you would work backwards.  You know the perimeter of a rectangle is 

2l + 2w

Which measurements will add up to a total of 160 meters, which is the length of the rope.

2(70) + 2(10) = 160

anonymous · Answer

Thank you, @WillRiven 
@AnimalLover8 i fanned you next time plz explain :)