ICSE Class 10 Answered
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Asked by chikkanna3749342 | 03 Feb, 2024, 23:21: PM
Let π = 22/7
Lenth of arc AB = (1/4) × ( 2 π r ) = 11 cm
(1/4) × ( 2 × (22/7) × r ) = 11
From above expression, we get r = 7 cm
Area of quarter circle = (1/4) × π r2 = (1/4) × (22/7) × 7 × 7 = 38.5 sq.cm
Area of triangle OPB = (1/2) × 4 × 7 sq.cm = 14 sq. cm
Shaded area = ( area of quarter circle) - ( area of triangle OPB)
Shaded area = ( 38.5 - 14 ) sq.cm = 24.5 sq.cm
Answered by Thiyagarajan K | 04 Feb, 2024, 09:13: AM
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