Question

PLEASE HELP!!! 13 + 7 POINTS!!! THANK YOU!

A set of stairs is being built as shown.
The length of each stair is 11 inches. What is the rise, r, for each stair? Round to the nearest inch.
2 inches
7 inches
17 inches
24 inches

Answer 1

B

Explanation:

I took test on Edg

Answer 2

7 inches

Explanation:

Using Pythagoras' theorem on the right triangle, that is

r² + 11² = 13²

r² + 121 = 169 ( subtract 121 from both sides )

r² = 48 ( take the square root of both sides )

r =
`√(48)` ≈ 7 in ( to the nearest inch )