Question

the surface areas of two objects are147cm squared and 432cm squared. What is the ratio of their edge lengths?

Answer 1

Are the two objects squares?

Answer 2

Actually, for that matter are they two-dimensional or three-dimensional?

Answer 3

i believe they are cubes

Answer 4

If they're cubes then each has 6 equal-sized surfaces and the square root of each surface is the edge length. Does that help?

Answer 5

yes , thank you

Answer 6

np

Answer 7

so if the square root of each surface is the edge length, then would this be the answer?
12.1244 : 20.7846
I think I'm doing something wrong

Answer 8

Let's work it through. The first one has a surface area of 147 total from its 6 sides, so each side has a surface area of 147/6 = 24.5. The surface area for a square is just the side squared, so that means the side is sort(24.5) = 4.95. Try this approach with the other one.

Answer 9

Remember that a cube has a top and bottom, so it has 6 sides not 4!

Answer 10

Oh, and sort(24.5) should have been sqrt(24.5)