Two circles have radii 3 cm. and 5 cm. find the ratio of their areas.

Answers 2

Answer: 9:25

Explanation:

area of circle = pi*r²

so ratio = (pi*3²)/(pi*5²) = 9:25

Answer: 9:25

Explanation:

Area of the first circle

= πr²

= π x 3 x 3

= 3.14 x 9

= 28.26 cm²

Area of the second circle

= πr²

= π x 5 x 5

= 3.14 x 25

= 78.5 cm²

Ratio of the first and second circle

= 28.26/78.5

= 9/25

= 9:25

I hope this helps :)

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