A hemispherical bowl is made of steel 0.25 CM thick the inner radius of the ball is 5 cm find the outer surface area of the bowl
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Answer:
Step-by-step explanation:
Outer radius =5.25
Outer sa=2*pi*r^2=2*22/7*5.25*5.25
=173.25cm^2
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5cm
0.25cm
5+0.25=5.25cm
2πr²
= 2× × (5.25)² = 172.25 cm²
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