Question

find the circumference and the area of the circle whose radius is 6.3 cm

Answer 1

Answer:

Circumference = 39.6 cm

Area = 124.74 cm²

Step-by-step explanation:

$\text{Given Radius (r) = 6.3 cm}\\\\\text{Area = } \pi r ^2 = \dfrac{22}{7} \times \dfrac{63 \times 63}{10 \times 10}\\\\\\= \boxed{124.74 \: cm^2}\\\\\\\text{Now, Circumference = } 2 \pi r = \dfrac{2 \times 22 \times 63}{7 \times 10}\\\\\\= \boxed{39.6 \: cm}$

Hope it helps.

Answer 2

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