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Find the area of a the shaded portion , given R= 4.5cm and r=2.5cm |
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Answer» ong>Step-by-step EXPLANATION: Area of the bigger circle = Pi × R² Area of the SMALLER circle = Pi × r² Area of the SHADED REGION = Area of bigger circle - smaller circle = Pi × R² - Pi × r² = Pi ( R² - r² ) = 22/7 × (4.5² - 2.5²) cm² = 22/7 × ( 20.25 - 6.25) cm² = 22/7 × 14 cm² = 44 cm² |
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