Question

find the diameter of circle whose area is 13.86
​

Answer 1

Answer:

Area of circle = πr^2

13.86. = 22/7 r^2

13.86 ×7/22 =r^2

1386×7/22×100=r^2.

√4.41 = r^2.

you solve this answer you get. 2.1...

now, 2.1+2.1 = 4.1...

4.1 is a diameter of circle..

hope it will be help

Answer 2

Answer:

area of circle - πr^2

13.86 = 22/7 ×r^2

13.86×7/22 = r^2

4.41 = r^2

r = √4.41

r = 2.1

diameter - 4.2

hope it will be helpful ✌️