Tick the correct answer in the following and justify your choice: If t

1.	Tick the correct answer in the following and justify your choice: If the perimeter and the area of a circle are numerically equal, then the radius of the circle is (A) 2 units (B) n units (C) 4 units (D) 7 units
Answer» Answer is (A) Circumference of a circle = Area of the circle. 2πr = πr² 2 × π × r = π × r × r ∴ 2 = r ∴ r = 2 units.

Tick the correct answer in the following and justify your choice: If the perimeter and the area of a circle are numerically equal, then the radius of the circle is (A) 2 units (B) n units (C) 4 units (D) 7 units

Answer»

Answer is (A)

Circumference of a circle = Area of the circle.

2πr = πr²

2 × π × r = π × r × r

∴ 2 = r

∴ r = 2 units.