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प्रश्न
A circular disc has a radius 10 cm. Find the area of the disc in m2 (Use π = 3.14).
उत्तर
Given radius = 10 cm = 0.1m
π= 3.14
Area of a circular disc A = ?
Formula : Area of a circle A = πr2
= 3.14 × 0.1 × 0.1
Solution : A = 0.0314 m2
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