Question

A ladder 33.6 feet long reaches to the top of a building when its foot stands 12.6 feet from the

building. How high is the building?

Answer 1

31.15

Explanation:

`a^(2)` +
`b^(2)` =
`c^(2)`

`12.6^(2)` +
`b^(2)` =
`33.6^(2)`

158.76 +
`b^(2)` = 1128.96

-158.76. -158.76

`b^(2)` = 970.2

`√(b)`. =
`√(970.2)`

b = 31.15 (rounded)