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प्रश्न
Find the area and perimeter of the circle with the following :
Radius= 2.8 cm
उत्तर
Area of the cirde = πr2
`= 22/7 xx 2.8 xx 2.8`
= 24.64 cm2
Perimeter of the circle = 2πr
`= 2 xx 22/7 xx 2.8`
= 17.6 cm
Therefore, Area= 24.64 cm2 and Perimeter= 17.6 cm
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