Question

find the circumference of circle whose area is 6.16 cm square​

Answer 1

Answer:

circumference of circle = 8.8 cm

Step-by-step explanation:

Here Area of circle = 6.16 sq. cm , r = ?

pi × r^2 = area of circle

22×7 × r^2 = 6.16

r^2 = 6.16 × 7/ 22

r^2 = 626/ 100 × 7/ 22

r^2 = 7× 7 ×2 × 2 / 100

taking square root both side

r = 14/ 10

r = 1.4

circumference of circle = 2× pi × r

= 2 × 22/7 × 1.4

= 8.8 cm

Answer 2

Answer is in the attachment ⤴️

Step-by-step explanation:

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