Answer:
22
Step-by-step explanation:
Circumference = diameter * pi = 22 * pi
7.5, 7.058, 8.508,
8.58
65
The values of sin θ and cos θ represent the legs of a right triangle with a hypotenuse of 1; therefore, solving for cos θ finds the unknown leg, and then all other trigonometric values can be found.
112*
( 360 - 46 - 90 ) ÷ 2 = 112