Question

Find the cost of painting the outer curved surface area of hemispherical bowl radius 7 cm.if the rate of painting is Rs 2.50 per cm​

Answer 1

Answer:

Rs.770 ,I think

Step-by-step explanation:

c.s.a. of hemisphere =

$2\pi {r}^{2}$

=

$2( \frac{22}{7} )(7)(7)$

= 308 cm^2 is curved surface area of the hemisphere.

now rate of painting it= 308 × 2.50

= Rs.770

hope helps.

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