Question

Question 3 (5 points)

A ladder that is 12 ft long is leaning against a building, forming a 55° angle with the
ground. How high up the building will the top of the ladder reach? Round your
answer to the nearest tent of a foot.
O
12.0
09.8
O
O
17.1
Question 4 (5 points)

Answer 1

9.8 ft

Explanation:

Picture attached.

The side marked h is the side opposite the 55 degree angle. The side marked 12 is the hypotenuse of the right triangle. The trigonometric ratio that involves the opposite and hypotenuse is the sine.

`sin(55^\circ) =(h)/(12)`

Multiply both sides of the equation by 12 to get

`h=12sin(55^\circ)`

Use a calculator (in degree mode!).