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Mathematics 8 Online
OpenStudy (katherinesmith):

A ladder is resting against a wall. The ladder and the ground make an angle of 35° and the ladder is 8 ft from the wall. How long is the ladder? Round your answer to the nearest hundredth.

OpenStudy (katherinesmith):

@Psymon

OpenStudy (psymon):

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OpenStudy (psymon):

Just gotta draw a picture to see :P

OpenStudy (katherinesmith):

what is the number i'm trying to use to find the equation

OpenStudy (psymon):

Well, you need to use the trig function that includes the known side and the unknown side.

OpenStudy (katherinesmith):

sin ?

OpenStudy (psymon):

It would be cosine this time. We have an adjacent side and the hypotenuse, so that calls for cosine.

OpenStudy (katherinesmith):

so cos(35) = 8/x ?

OpenStudy (psymon):

Yep :3

OpenStudy (katherinesmith):

final answer is 9.76?

OpenStudy (psymon):

yep xD

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