In the diagram below the vertices of triangle DEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of triangle ABC is 36cm

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Nikolas calculated the volume of the prism. his work is shown below.

Which expression gives the exact value of x?