Question

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is

(A) 2 units
(B) π units
(C) 4 units
(D) 7 units

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Answer 1

Answer:

(A) 2 units

Step-by-step explanation:

According to question,

Perimeter=Area

2πr=πr²

r²=2r

∴ r = 2 units

Answer 2

Solution :-

Let the radius of the circle be r.

∴ Circumference of the circle = 2πr

∴ Area of the circle = πr²

ATQ,

2πr = πr²

⇒ 2 = r

Thus, the radius of the circle is 2 units.

(A) is correct.

Thanks ..!!