Question

Help?!

T.A (Total Area)=

http://tinypic.com/r/fvyq8/6

Answer 1

The perimeter of the pentagon is 20, so each side is 20/5 = 4

Answer 2

The pentagon can be broken up into 5 equal triangles with base 4 and height k

Answer 3

so each triangle is 4k/2 = 2k square units

There are 5 triangles total, so the pentagonal base is 5*2k = 10k square units

Answer 4

I'll let you do the lateral surface area