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2 years ago

A circle has a radius of 9 cm and a sector of the circle has an arc length of 9. 7cm

Mathematics

1 answer:

frutty [35]2 years ago

7 0

Answer:

S = R θ where θ is in radians

If θ = 2 pi then S = 2 pi R the circumference of the circle

θ = S / R = 9.7 / 9 = 1.08 rad

Since 1 rad = 360 / (2 pi) = 57.3 deg

the angle included = 1.08 rad * 57.3 deg/rad = 61.9 deg

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