Question

the ratio of the radius of two circle is 2:5 find the ratio of their areas​

Answer 1

πr²:πR²

so

4π:25π

solve with π value 3.14 you'll get your answer ❤️

Answer 2

Answer:

1

3

The ratio of the radii of two wheels is 2:5. What is the ratio of its circumference?

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Qaiser Mobin

Answered February 24, 2019

The ratio of the radii of two wheels is 2:5. What is the ratio of its circumference?

The ratio of the radii of two wheels is 2:5. What is the ratio of their circumference?

Let the larger radii be R units

And the smaller radii be r units

So, r:R = 2:5 (given)

As circumference = 2π*radius

So, circumference of larger circle = 2πR

And circumference of smaller circle = 2πr

Ratio, 2πr:2πR = r:R = 2:5