Question

How to diameter of circle if area is 394.24 sqcm

Answer 1

Answer:

23

Step-by-step explanation:

394.24 = pi r^2

Thus 394.24 x 7 /22= r^2

125.44 = r^2

11.2 =r

Thus diameter =2r = 11.2 x 2= 23

Answer 2

Answer: 22.4cm

Step-by-step explanation: $\sqrt{394.24*7/22}$ *2= 22.4