the areas of three circles are in the ratio 4 ratio 9 ratio 25 find the ratio of their radii
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Answered by
29
The area of the circle is πr^2
The areas of two circles are in a ratio of 4:9:25
the radiis are in the ratio of 2:3:5
hope it helps u ^-^
keep questioning
The areas of two circles are in a ratio of 4:9:25
the radiis are in the ratio of 2:3:5
hope it helps u ^-^
keep questioning
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the population of country in the year 2004 was 50000 if the population is reducing 20 per thousand per year .what would be the population of the country in the year 2006
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20 per thousands per years means??
20/1000*100 =2%
Answered by
15
their ratio of areas are 4:9:25
πr1^2/πr2^2/πr3^2=4:9:25
π is cut in all areas..
then r1/r2/r3=√4:9:25
2:3:5 ans....
πr1^2/πr2^2/πr3^2=4:9:25
π is cut in all areas..
then r1/r2/r3=√4:9:25
2:3:5 ans....
Similar questions
Let the radii of the three circles be a,b and c
Therefore their areas will be π(a^2), π(b^2) and π(c^2)
The ratio of their areas will be (a^2):(b^2):(c^2) = 4:9:25
We are asked to find the ratio of their radii that are a (sqrt of a^2), b (sqrt of b^2) and c (sqrt of c^2)
Therefore the ratio of their radii will be (sqrt of 4):(sqrt of 9):(sqrt of 25)=2:3:5
Hope it helps.