Question

The radii of two circle are in the ratio 2: 3 find the ratio of their Areas​

Answer 1

Answer:

4:9 is the right answer of this question

Answer 2

Answer:

4 : 9

Step-by-step explanation:

Information provided to us in the question,

Ratio of the radii of two circles = 2 : 3

Let the radii(singular: radius) of the two circles be '2x' cm and '3x' cm.

r1 = '2x' cm

r2 = '3x' cm

Area of the 1st circle = π * r1² = π * (2x)² = 4x²π cm²

Area of the 2nd circle = π * r2² = π * (3x)² = 9x²π cm²

Required ratio will be as follows,

(4x² π) / (9x² π)

= 4 / 9

= 4 : 9