From each corner of a rectangular paper (30 cm x 20 cm) a quadrant of a circle of radius 7 cm is cut. Find the area of the remaining paper i.e., shaded portion.
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Answer:
Area of Rectangular Paper = 30 × 20
= 600cm²
Area of one quadrant = 1/4 × π (7)²
∴ 4 Quadrants = 4 × 1/4 × π × (7)²
∴ 4 Quadrants = 22/7 × 7 × 7
= 154 cm²
∴ Area of shaded portion = 600 -154
= 446cm².
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