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A hemispherical bowl is made of …

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A hemispherical bowl is made of steel, 0.25cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface area of the bowl.
  • 2 answers

Uttam Verma 11 months ago

Inner radius of hemispherical bowl = 5 cm Thickness of the bowl = 0.25 cm ∴ Outer radius (r) of hemispherical bowl = (5 + 0.25) cm = 5.25 cm Outer CSA of hemispherical bowl = 2r2 Therefore, the outer curved surface area of the bowl is 173.25 cm2.

Uttam Verma 11 months ago

r = 5 c m , thickness of steel sheet = 0.25 c m ⇒ R = 5 c m + 0.25 c m = 5.25 c m outer curved surface area of the bowl = 2 π R 2 = 2 × 22 7 × 525 100 × 525 100 c m 2 = 173.25 c m 2
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