Question

If two circle have their radii in the ratio of 3:2,then their areas are in the ratio of

Answer 1

Hey there!
Given, Ratio of radii of two different circles = 3 : 2

Let the radii be 3r , 2r .

Area of circle = πr²

Area of First circle = π(3r)² = 9πr²
Area of second circle = π(2r)² = 4πr²

Ratio of Areas = 9πr² : 4πr² = 9 : 4

Hope helped!

Answer 2

hye

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two circle have their radii in the ratio of 3:2

=> so let it be 3r and  2r 

=>now we have to find  their areas are in the ratio of what?

=>area of a circle = π *r² [ r = radius ]

so area of bigger circle = π *r²

radius = 3r

=> π *(3)r²

=> 9r² π


=>area of smaller  circle = π *r²

radius = 2r

=> π *(2r)²

=> 4r² π

therir ratios = 9 :4

but this can be simplied further

=> 3:2

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hope it helps u/..................