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प्रश्न
Find the surface area of hemisphere with radius 10 cm (π = 3.14).
बेरीज
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उत्तर
Given: Radius of the hemisphere (r) = 10 cm
π = 3.14
Formula: Total surface area of hemisphere = 3πr2
= 3 × 3.14 × (10)2
= 3 × 3.14 × 100
= 3 × 314
= 942 cm2
The surface area of the hemisphere is 942 cm2.
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पाठ 7: Mensuration - Exercise
