Question

area of the circle is 394.24 find it diameter​

Answer 1

Answer:

21.44

Step-by-step explanation:

Area of circle (π r²) = 394.24

r² = 394.24 ×7/22

r²= 114.99

r= 10.72.

since diameter= 2r

:- Diameter = 21.44

Hope it helps.

Answer 2

Step-by-step explanation:

A=πr^2

=>394.24=22/7×r^2

=>r^2=394.24×7/22

=>r^2=394.24×0.3181

=>r^2=125.40

=>r=√125.40

=>r=11.19

=>r ≈ 11

d=2×r

d=2×11

d=22