Question

Find the circumference of a circle whose area is 301.84 cm².
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Answer 1

Answer:

Circumference of a circle is 61.6 cm.

Step-by-step explanation:

Given :

Area of circle = 301.84 cm²

Area of circle = πr²

301.84 = πr²

301.84 = 22/7 × r²

r² = (301.84 × 7)/22

r² = 96.24

r = √96.24

r = 9.81 cm

Circumference of the circle,C = 2πr

C = 2 × 22/7 × 9.81

C = (44 × 9.81)/7

C = 431.64/7

C = 61.6 cm

Hence, circumference of a circle  = 61.6 cm

 

Answer 2

Heya!

Answer:  61.6 cm  

Step-by-step explanation:

Area of the circle = 301.84 cm²

πr² = 301.84

22/7 × r² = 301.84

r² = 301.84 × 7/22

r² = 27.44 × 7/2

r² = 7 × 13.72

r² = 96.04

r = 9.8 cm

Radius of the circle = 9.8 cm

Circumference of the circle = 2πr

= 2 × 22/7 × 9.8

= 61.6 cm