Question

find the total surface area of the hemisphere of radius 21 cm​

Answer 1

Answer:

4158cm²

Step-by-step explanation:

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Answer 2

Answer:

1386 cm^2

Step-by-step explanation:

Total surface area of hemisphere :- 3πr^2

R= 21

$3 \times \frac{22}{7} \times 21 \times 21$

$3 \times 22 \times 3 \times 21$

$1386$