Mathematics
The circumference of a circle is numerically same as its area; then its radius is :
4 unit
2 unit
1 unit
none of these
Area Trapezium Polygon
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Answer
Given:
The circumference of a circle = The area of a circle
Let r be the radius of the circle.
As we know, the circumference of the circle = 2πr
And, the area of the circle = πr2
So,
⇒ 2πr = πr2
⇒ 2r = r2
⇒ 2 = r
Hence, the radius of the circle is 2 units.
Hence, option 2 is the correct option.
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