The diameter of two circles are 4 cm and 6 cm respectively . find the ratio of their areas
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Step-by-step explanation:
the area of a circle is = πr²
diameter =2r (r is radius )
r1 =6/2=3
r2=4/2=2
so the ratios will be
= area of circle of bigger radius ÷ area of circle of smaller radius
π x 3 x 3 / π x 2 x 2= 6/4 ( can also be written as 6:4)
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