Question

The circumference of two circles are in the ratio 4:6. Find the ratio of their areas

Answer 1

Answer:

Step-by-step explanation

Mensuration:-

Given:-

Ratio of circumference of two circles=4:6

To find:-

Ratio of the areas

Solution:-

Circumference of a circle of radius r=2πr

Area of a circle of radius r=πr^2

So,ratio of the radii of two circles is 4:6 only

Ratio of the areas =(r1/r2)^2=(4/6)^2=4/9

Hence required ratio is 4:9

Answer 2

Answer:

We know, the area of a circle = π r^2, where r is the radius of the circle. As there are two circles, let us assume that radius of one circle is 'a' and radius of other circle is 'b'. Thus, the ratio of circumferences of two circles will be 7/8.

Step-by-step explanation:

Mark as BRAINLIEST one