A pyramid has a height of 5 in. and a surface area of 90 in2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary?

Answer 1

surface areas of similar solids are proportional to the square of their corresponding sides

area of larger/90 = 10^2/5^2
area of larger = 90(100/25) = 360 in^2

Answer 2

surface area of a pyramid prism

Answer 3

1.B
2.A
3.C
4.D
5.A
6.A
7.A

Answer 4

You are completely correct @Annoe

Answer 5

You were incorrect on all you made me fail

Answer 6

You gotta post the full answers, not just the letter answers.
We all have different answers, so some of us will fail and some of us won’t.
I will probably come back with the answers for everyone! 😀😌

Answer 7

You are correct @annoe i just did it and got 7/7!

Answer 8

What are the answers 😭

Answer 9

since I've used this platform this semester to generally check my answers, here's a pretty late contribution

1 - 803.8 cm2

2 - 452.2 m2

3 - 267.9 ft3

4 - 2 cm

5 - 12 mm

(I got these last 2 wrong, I don't see how I'm wrong but here's what its telling me the answers are)

6 - 360 in2

7 - 120 ft3

*** MY PERSONAL ANSWERS FOR THESE, DONT ENTER THEM

*6 - 180 in2 (incorrect)

*7 - 120 ft3 (incorrect)

if somebody understands these, please explain them to me, im tired and this is my last day working of the semester, so if any of these are incorrect now, tag me and please fix them, thanks.

Answer 10

checking if @annoe is correct. Brb!

Answer 11

sodapop for me question 7 was 30?? thats weird