Question

the radius of circle is 14cm. find the radius of another circle whose area is one forth of that​

Answer 1

Answer:

7cm

Step-by-step explanation:

area of circle=pir2

=22/7*14*14

=616

one forth of area=616*1/4

=154

154=22/7*r^2

154*7/22=r^2

r2=49

so radius is 7

hope it helps u buddy...

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Answer 2

Answer:

7

Step-by-step explanation:

area is directly proportional to the square of radius

so we compare the areas

it's gonna give a ratio of 1/4 which will be equal to r2^2/r1^2 .... hence