Question

If the ratio of Diameter of Circle to its area is 2/7 then find its Diameter?
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Answer 1

Answer:

Step-by-step explanation:

Pie marked as ₩

As we know,

d=2r

Area=2₩rh

Now, 2r/2₩rh=2/7

7(2r)=2(2₩rh)

14r=4×22/7×rh

14r=88rh/7

14=88h/7 (r divides r)

H=88/7×14

H=88×2

H=176cm

Now, area =2₩rh

(We found value of h)

=2×22/7×r×176

=44/7×r×176

Now find area ,through are find radius and diameter =2r