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ICSE Class 8 Answered

Find the area of the shaded portion in the following figure. All measurements given are in centimeters. 
question image
Asked by Cl_narayan | 01 Oct, 2019, 05:33: PM
answered-by-expert Expert Answer
Left half of the image has 3 semicircles
Area of cricle with diameter 2.8 = 49∏/25
Area of cricle with diameter 3.5 = 49∏/16 
Area of cricle with diameter 6.3 = 3969∏/400
Shaded area = 2 × (Area of cricle with diameter 6.3 + Area of cricle with diameter 3.5 - Area of cricle with diameter 2.8)
Answered by Arun | 02 Oct, 2019, 06:25: PM

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