Math, asked by BabliBisht, 1 year ago

the diameter of two silver discs are in the ratio of 2:3.what will be the ratui of their areas?

Answers

Answered by purvisri02

1

4:9
is the ratio of their area

BabliBisht: please give me full answer

BabliBisht: How the answer is 4:9

purvisri02: area of circle = pi r^2

purvisri02: as d=2r

purvisri02: so r=d/2

purvisri02: now taking first d as 2x and second one as 3x

purvisri02: divide both of them and you will get the answer

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