Question

A ladder leans against a house at a 60° angle to the ground. If the ladder extends to a length of 166 inches, what is the height of the house to the nearest hundredth of an inch?

Answer 1

sin60 = x/166
166 * sin60 = x

Answer 2

it's sine...

Answer 3

but how would you solve for x using cos?

Answer 4

http://www.wolframalpha.com/input/?i=166+*+sin60

Answer 5

You don't use cosine here.

Answer 6

uhh that would be impossible @tnhaydu

Answer 7

where did you get cos 90 o.O

Answer 8

It's a 90 degree angle

Answer 9

Impossible or improbable?

Answer 10

cos(90) is 0 remember...

Answer 11

Lol I realised just at the same time

Answer 12

ohh yeah truee thanks guys (: