an archery target has 3 regions formed by three concentric circles. if the diameters of the concentric circles are in the ratio 1:2:3, then find the ratio of the areas of the regions???(NCERT EXEMPLAR)
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let diameter of smallest circle is x
radius1=x÷2
then d of intermediate circle is 2x
r=x
d of largest circle is3x
r=3x÷2
ratio of areas =1÷4:1:9÷4 or 0.25:1:2.25
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radius1=x÷2
then d of intermediate circle is 2x
r=x
d of largest circle is3x
r=3x÷2
ratio of areas =1÷4:1:9÷4 or 0.25:1:2.25
hope it help you
please mark it as brainliest
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