Question

the circumference of a circle is 6pie find the diameter and the area of the circle

Answer 1

circumference=2pie r
2pie*r=6pie

2*r=6
r=3
so d=6

are of circle is pie*r^2

pie *3*3

9pie will be the answer or 9*22÷7
28.28 will be the area

Answer 2

The circumference of a circle =
$6\pi$

$2\pi r \: \: = 6\pi \\ 2r \: \: = 6 \\ r \: = \: 6 \div 2 \\ r = 3$

If radius is 3 then, diameter will be double. Then, 3×2 =6
Diameter =6
Area of a circle = pie r^2
= 22/7×3^2
=22/7×3×3
= 22/7×9
= 28.28