Question

if the area of a circle is 346.5 find its diameter

Answer 1

d = 21 is the answer bro

Answer 2

hiii!!!

here's ur answer...

area of the circle = 346.5unit²

therefore πr² = 346.5unit²

=> 22/7 × r² = 346.5unit²

=> r² = 346.5/1 × 7/22

=> r² = 15.75 × 7

=> r² = 110.25

=> r = √110.25

=> r = 10.5cm

VERIFICATION:-

area of the circle = πr²

= 22/7 × 10.5 × 10.5

= 2425.5/7

= 346.5cm²

hence verified

thus the radius of the circle is 10.5cm.

now,

we know that the diameter of the circle is double of radius, therefore diameter = 10.5 × 2

= 21cm

hope this helps..!!