Question

15. Total Surface Area of a
Hemisphere of height 7 cm is *
O 134 cm2
O 144 cm
462 cm2
O
482 cm?​

Answer 1

Answer:

462 cm²

Step-by-step explanation:

total surface area of hemisphere = 3πr²

the height of hemisphere is its radius = 7 cm

$3\pi {r}^{2} \\ = 3 \times \frac{22}{7} \times 7 \times 7 \\ = 3 \times 22 \times 7 \\ = 66 \times 7 \\ = 462 {cm}^{2}$

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