Respuesta :
x / 10pi = 360 /((pi)(r^2))
To isolate x, multiply both sides by 10pi
x = 360 /((pi)(r^2)) (10pi) = 3600/r^2 = 3600 / 20^2 = 9 degrees
To isolate x, multiply both sides by 10pi
x = 360 /((pi)(r^2)) (10pi) = 3600/r^2 = 3600 / 20^2 = 9 degrees