Abike ramp is constructed such that a 5-foot launching ramp makes a 30° angle with the ground. what is the measure of angle θ ? enter your answer, as a decimal rounded to the nearest tenth, in the box.

9514 1404 393

  18.2°

Step-by-step explanation:

The law of sines tells you the sine of the angle is proportional to the length of the opposite side.

  sin(θ)/5 = sin(30°)/8

  sin(θ) = (5/8)sin(30°) = 0.3125

  θ = arcsin(0.3125) ≈ 18.2°

Angle θ measures about 18.2°.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: