Question

If the area of the circle is 308 cm square then the perimeter is

Answer 1

hi

aim : If the area of the circle is 308 cm square then the perimeter is

area of the circle is 308 cm square

area of a circle = 22/7 * radius * radius

so,

308 = 22/7 * r²

r² = 308 * 7/22

r² = 98

r = √98

r = 9.89


now c = 22/7 * 2*r

= 22/7 * 2* 9.89

= 62.16 cm

hope it helps u

:)

Answer 2

Area of circle = 308

=> πr² = 308

=> r² × 22/7 = 308

=> r² = (308×7)/22

=> r² = 98

=> r = √98

=> r = 9.9


×××××××××××××××××××××××


Perimeter of circle = 2πr

Perimeter of circle = 2×9.9 × 22/7

Perimeter of circle = 62.23 cm





I hope this will help you


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