# Measuring Rotation - Page 4

Questions

- How do you find the reference angle for the following angle: 69 degrees?
- How do you find the reference angle for the given angle 415?
- A pole leans away from the sun at an angle of 5 degrees to the vertical. When the elevation of the sun is 56 degrees, the pole casts a shadow 43 ft long on level ground. How long is the pole?
- A mouse wheel is 20cm in diameter and the base of the wheel is 1cm off the ground. If the hamster can spin the wheel 3 times each second, what s the sine function that describes the movement of the wheel of it starts at its lowest point?
- If the point (5/13,12/13) corresponds to angle theta in the unit circle, what is cot theta?
- How do you find the coterminal angles in radians?
- A 30-meter tall antenna sits atop the edge of a building. From a point on the ground on the sideof the building where the antenna sits, the angle of elevation to the top of the building is 48◦andthe angle of elevation to the top of the antenna is 54◦. ?
- What is the positive and negative angle that is coterminal with #-150^\circ#?
- What is the positive and negative angle that is coterminal with #120^\circ#?
- A 24 foot tree casts a shadow that is 9 feet long . At the same time a nearby building cats a shadow 45 feet long . how tall is the building?
- How do i find m<d???
- How do you draw angles of rotation in standard position?
- When measuring angles, do you move clockwise or counterclockwise?
- A wheelchair ramp is 4.2 m long. It rises 0.7 m. What is its angle of inclination to the nearest degree?
- How do you sketch the angle #(5pi)/4# and find its reference angle?
- What does it mean to have a negative angle?
- How do you evaluate #cot(pi/4)#?
- If cot θ=-3/4 on the interval (90°, 180°) find sin θ? If sin^2 θ * sec θ * cot θ = (sqrt3)/2 find sin(θ+pi)?
- How do you sketch the angle 240 degrees and find its reference angle?
- How do you sketch the angle -240 degrees and find its reference angle?