Question

a pyramid has the height of 5 in. and the Surface area of 90 in2. find the surface area of a similar pyramid with a height of 10in. round if necessary.

Answer 1

seems like a ratio to me. well 5:90. you doubled the height so the SA doubles to 180.

Answer 2

Thanks, but I tried that and the answer was wrong. The correct answer was 360 in2, I just want to know how they got this ...

Answer 3

hmm from what i got it seemed like 180. guess not if i get it i'll let you know

Answer 4

Thank you so much....