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Find the area of circle whose cicumferrence is 22cm.

Posted by S. Gautham 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 7 months ago

Circumference of circle = 22 cm
Let the radius of the given circle be 'r'
Circumference of a circle = 2πr
⇒ 22 = 2 × 22/7 × r
⇒ r = (22 × 7)/(22 × 2)
⇒ r = 154/44
⇒ r = 3.5 cm
Area of circle = πr²
⇒ 22/7 × 3.5 × 3.5
⇒ 269.5/7
= 38.5 cm²
So, the area of the given circle is 38.5 cm²

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CBSE > Class 10 > Mathematics