Question

What is area and circumference of the circle if diameter is 30​

Answer 1

Solution, Diameter = 30
`radius = (diameter)/(2) = (30)/(2) = 15 \\`

Now, []area = \pi {r}^{2} [/tex]
`= 3.14 * 15 * 15`
`= 706.5`Hence the area is 706.5now........
`circumference = 2 \: \pi\: r`
`= 2 * 3.14 * 15`
`= 94.2`hence the answer is 94.2...

Answer 2

Solution,

Diameter = 30

`radius = (diameter)/(2) = (30)/(2) = 15 \\`

Now,

`area = \pi {r}^(2)`

`= 3.14 * 15 * 15`

`= 706.5`

Hence the area is 706.5

now........

`=Circumference = 2 \: \pi\: r`

`= 2 * 3.14 * 15`

`= 94.2`

hence the answer is 94.2...