Tyrese is building a ramp up to his home. He knows the height of the ramp is 2 feet. If the angle of elevation of the ramp is 20°, how long does the ramp have to be?
To find the length of the ramp, we can use trigonometry. Since the angle of elevation is 20° and the height of the ramp is 2 feet, we can use the sine function to find the length of the ramp.
sin(20°) = 2 / length of ramp
length of ramp = 2 / sin(20°)
length of ramp ≈ 5.81 feet
Therefore, the ramp has to be approximately 5.81 feet long.