Trigonometry

A 20-foot ladder leans against a vertical wall and makes a 68° angle with the ground. How high up the wall does the ladder reach? Round to the nearest tenth of a foot.

A person stands 40 meters from the base of a building. The angle of elevation from the person to the top of the building is 35°. Find the height of the building to the nearest tenth of a meter. Assume the person's eye level is at ground level.

A right triangle has an opposite side of length 7 and an adjacent side of length 24 relative to angle θ. Find θ to the nearest tenth of a degree.

Convert 150° to radians. Give your answer in terms of π.

Convert 7π/4 radians to degrees.

Find the exact value of cos(45°).

Find the exact value of sin(30°).

Find the exact values of sin(120°) and cos(120°).

Find the exact values of sin(225°), cos(225°), and tan(225°).

From a point on level ground, the angle of elevation to the top of a tower is 32°. After moving 50 meters closer to the tower, the angle of elevation is 47°. Find the height of the tower to the nearest tenth of a meter.