9. Find the area of the sector of a circle of radius 14 cm with central angle 45'.
(a) 76 cm? (b) 77 cm² (c) 66 cm
(d) none of these
with explanation
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Answer:
(b)77cm²
Step-by-step explanation:
area of sector =(theta)÷360°×πr²
theta=45°, r=14
area=45÷360×22÷7×14×14
area=77cm²
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