Question

Findtheareaofcircleofradius21cm.​

Answer 1

Step-by-step explanation:

radius ( r ) = 21

Area of circle = pie r square ( friend I am not having the symbols)

= 22/ 7 × 21 × 21 ( because r square)

= 1386 cm square

Answer 2

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Find the area of circle of radius 21cm.

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$given \\ radius = 21 \\ area \: of \: circle \: = \pi \: r ^{2} \\ \frac{22}{7 } \times 21 \times 21 \\ 1386cm^{2}$