# trigonometry

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a ladder which is 5 m long leans against a nail on the wall.it makes an angle of 62 derees with the ground. find the height of the nail above the ground and the distance of the foot of the ladder from the wall.

• trigonometry -

sin 62 = h/5
cos 62 = d/5

• trigonometry -

A ladder 6.4 meters long leans agant the wall of an apartment house forming an angle of 53%20% with the ground. How high up the wall does it reach?

• trigonometry -

h=4.41m
d=2.35m

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