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In a circle, a 90° sector has area 16π ft2. What is the radius of the circle?
Options:
a. 16 ft
b. 4 ft
c. 12 ft
d. 8 ft

Respuesta :

sector area  = 0.5 * r^2 * angle (in radians)

so:

16 pi = 0.5 * r^2 * (90*pi/180)

r^2 = 16 pi /(0.25 pi) = 64

r = 8


therefore it would be d
lexusdixon3

Answer:

8ft

Step-by-step explanation:

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