diameter of two silver discs are in the ratio 2 : 3 what will be the ratio of their areas
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Let the diameter be 2x and 3x
So Radii will be in ratio xand 3/2x
So Area of disc=πr²
So ratio of disc with radius x and 3/2x is
=π(x²)/(π[3/2x]²
=1/(9/4)
=1:(9/4)
=4:9
Answer
So Radii will be in ratio xand 3/2x
So Area of disc=πr²
So ratio of disc with radius x and 3/2x is
=π(x²)/(π[3/2x]²
=1/(9/4)
=1:(9/4)
=4:9
Answer
ana205:
can u plz explain that why u have taken x and 3x/2 as radius
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