three semicircles each of diameter 3 cm a circle of diameter 4.5 CM in a semicircle of radius 4.5 CM are drawn in a figure find the area of shaded region
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larger semicircle - Area of circle - 2(Area of small semicircle) + Area of small semicircle
= Area of larger semicircle - Area of circle - Area of small semicircle
= [π(4.5 cm)²/2] - π(4.5/2 cm)² - [π(3/2 cm)²/2]
= π[(4.5)²/2 - (4.5/2)² - (3/2)²/2] cm²
= 12.37 cm²
= Area of larger semicircle - Area of circle - Area of small semicircle
= [π(4.5 cm)²/2] - π(4.5/2 cm)² - [π(3/2 cm)²/2]
= π[(4.5)²/2 - (4.5/2)² - (3/2)²/2] cm²
= 12.37 cm²
aanya9698:
dont understood
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