Question

area of circle is 39 4.24 square cm find its diameter​

Answer 1

Answer:

Step-by-step explanation:

area of circle = πr²

πr²= 394.24

r²=394.24/π

r² = 17.92 * 7

   =125.44

r= 11.2cm

∴ diameter = 2r = 22.4cm

Answer 2

Step-by-step explanation:

diameter = 2r

since r = 11.2

then diameter = 22.4