Question

A square pyramid is 8 m on each side. The surface area is 240 m2. What is the slant height?

Answer 1

Please Help :( Im really confused

Answer 2

Well I'm a little confused too but Ima throw some things that I see and hopefully we can find something out.

Answer 3

We know the area of the square is 8*8 right?
8*8=64

Answer 4

Yes thats true...

Answer 5

if we subtract that from the total surface area we get

240-64=176

Answer 6

The pyramid will create 4 slant surfaces divide that evenly we get

176/4=44

Answer 7

Hmmm I didnt think of it that way...

Answer 8

we said the area is 44

Answer 9

we also know that we can find the area of the triangle by
\[\frac{1}{2}*b*h\]

Answer 10

where the base=8

Answer 11

so
4*h=44

Answer 12

h=11