Question

find the vircumference of circle whose area is 6.16cm

Answer 1

Hiii!!!

here's ur answer...

area of the circle = 6.16cm²

→ πr² = 6.16cm²

→ 22/7×r² = 6.16cm²

→ r² = 6.16×7/22

→ r² = 0.28×7

→ r² = 1.96

→ r = √1.96

→ r = 1.4cm

VERIFICATION:-

area of circle = πr²

= 22/7×1.4×1.4

= 43.12/7

= 6.16cm²

hence verified

thus the radius of the circle is 1.4cm.

now circumference of the circle = 2πr

= 2×22/7×1.4

= 61.6/7

= 8.8cm

hope this helps..!

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Answer 2

Answer: 8.8 cm

Step-by-step explanation:

area of the circle = 6.16cm²

πr² = 6.16cm²

22/7×r² = 6.16cm²

r² = 6.16×7/22

r² = 0.28×7

r² = 1.96

r = √1.96

r = 1.4cm

Circumference = 2 πr

=2 × 22/7 × 1.4

=8.8cm