Question

If radius of the circle is 2.1 cm. Find total surface area of hemisphere.​

Answer 1

Answer:

19.8cm²

Step-by-step explanation:

total surface area of hemisphere

=

$3\pi {r}^{2}$

=

$3 \times \frac{22}{7} \times 2.1$

=

$3 \times 22 \times0.3$

=

$19.8 {cm}^{2}$

Answer 2

Answer:

Total Surface arae of hemisphere = 3πr²

=> 3 × 22/7 × 2.1 × 2.1

=> 41.58 Ans.

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