Question

radius of a circle is 7centimetre then find its area​

Answer 1

Step-by-step explanation:

radius,r = 7 cm

then , the formula of the area of circle = πr^2

= π×7×7

= 49π

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Answer 2

Step-by-step explanation:

area = piR²

=22/7R²

R=7

so,

area= 22/7*7*7

= 22*7 (7&7 get cancelled)

=154

therefore, its area is 154 cm²