Question

A painter leans a 15 ft ladder against a building. The base of the ladder is 6 ft from the building. To the nearest foot, how high on the building does the ladder reach?

Answer 1

use Pythagoras theorem to find x (height)
can you proceed now ?

Answer 2

18?

Answer 3

no
15 ^2 = 6^2 + x^2

Answer 4

9

Answer 5

225 = 36 + x^2
225 - 36 = 189 = x^2
x = sqrt(189)

Answer 6

14

Answer 7

13.7

Answer 8

i know i just rounded it

Answer 9

thank you

Answer 10

great!!