three sectors of a circle of 7cm.making angles of 60°,80°,and 40° at the center are shaded.find the area of the remaining region
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Step-by-step explanation:
60 + 80 + 40 = 180
therefore, the combined area covered by the sectors is half the area of the circle.
therefore, remaining area = πr²/2
= (22/7) × 7 × 7 /2
= 154/2 = 77 sq. cm
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