plz.. question no. 7 solve
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let the radii be 4x and 5x
Area of 1st circle=pi*4x*4x
pi*16x^2
Area of 2nd circle=pi*5x*5x
25x^2*pi
Therefore, ratio=
Area of 1st circle/area of 2nd circle
=pi*16x^2/(pi*25x^2)
16:25..... Ans
Area of 1st circle=pi*4x*4x
pi*16x^2
Area of 2nd circle=pi*5x*5x
25x^2*pi
Therefore, ratio=
Area of 1st circle/area of 2nd circle
=pi*16x^2/(pi*25x^2)
16:25..... Ans
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