Question

Find the circumference and the area of the circle having radius[Take pie=22by 7]
a. 2.1m

plz help!!​

Answer 1

Answer:

13.2 m, 13.86 m²

Step-by-step explanation:

Radius of circle, r = 2.1 m

Circumference = 2 π r

= 2 x 22/7 x 2.1

= 13.2 m

Area = π r²

= 22/7 x 2.1 x 2.1

= 13.86 m²

Answer 2

circumference of a circle = 2pie r

= 2 x 22/7 x 2.1

= 2 x 22 x 0.3

= 13.2

area of a circle = pie r sq.

= 22/7 x 2.1 x 2.1

= 22 x 0.3 x 2.1

= 13.86 m2(sq.)

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