Question

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

Answer 1

Solution, Diameter = 30$radius = \frac{diameter}{2} = \frac{30}{2} = 15$

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

Answer 2

Solution,

Diameter = 30

$radius = \frac{diameter}{2} = \frac{30}{2} = 15$

Now,

$area = \pi {r}^{2}$

$= 3.14 \times 15 \times 15$

$= 706.5$

Hence the area is 706.5

now........

$=Circumference = 2 \: \pi\: r$

$= 2 \times 3.14 \times 15$

$= 94.2$

hence the answer is 94.2...