No 12 Q 12 A cubical block of side 5 cm is surmounted by a hemisphere The base - Maths - Surface Areas and Volumes

Question

No 12
Q 12 A cubical block of side 5 cm is surmounted by a hemisphere The
base of the block is a cube and the hemisphere fixed on the top has
a diameter 4 2 cm Find the total surface area of the block and the
cost of painting at the rate of Rs 5 per 100 sq cm (Take π =
22 7 )

Neha Sethi · Accepted Answer

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No.12 Q.12. A cubical block of side 5 cm is surmounted by a hemisphere. The base of the block is a cube and the hemisphere fixed on the top has a diameter 4.2 cm. Find the total surface area of the block and the cost of painting at the rate of Rs. 5 per 100 sq. cm. (Take π = 22 7 )

No.12
Q.12. A cubical block of side 5 cm is surmounted by a hemisphere. The base of the block is a cube and the hemisphere fixed on the top has a diameter 4.2 cm. Find the total surface area of the block and the cost of painting at the rate of Rs. 5 per 100 sq. cm. (Take $π = \frac{22}{7}$ )