Question

Find the surface area of the frustum. Show all work

Answer 1

Total surface area or curved surface area?

Answer 2

total

Answer 3

fooflormath total surface is what i need to find

Answer 4

Hm.Do you know how to find the height?

Answer 5

no i dont im so sorry

Answer 6

okay,

\[ h^2 = l^2-(R-r)^2 \Rightarrow h= \sqrt{40}\]

Answer 7

can you do the rest?

Answer 8

no need to be sorry .. I didn't know this either until today ..