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If the area of a circle is 196π m2 then the circumference of the circle is _______

A88 m

B76 m

C44 m

D58 m

Answer:

A. 88 m

Read Explanation:

Solution:

Given:

Area of a circle = 196π

Formula used:

Area of a circle =πr2

Circumference  = 2πr

Calculation:

⇒ Area of a circle =πr2

196π=πr2

r= 14 m

Circumference = 2πr =2×227×14=88m=2\times{\frac{22}{7}}\times{14}=88m

⇒ Hence, The perimeter of a circle is 88 m


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ഒരു സമചതുരത്തിന്റെ വിസ്തീർണ്ണം 900 cm^2 ആയാൽ ആകെ ചുറ്റളവ് എത്ര?