Question

The area of the circle

Answer 1

$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Let's find the Area of given circle ~

Area of circle is :

$\qquad \tt \dashrightarrow \: \pi{r}^{2}$

where, r = radius

• $\tt r = d/2 = 14/2 = 7 km$

Now, let's calculate it ~

$\qquad \tt \dashrightarrow \: a = \pi{}^{}×(7)²$

$\qquad \tt \dashrightarrow \: a = 49\pi{}^{}km²$

That's the answer I terms of π, but we can also plug in the appropriate value of pi as 3.14

$\qquad \tt \dashrightarrow \: a=49\times 3.14{}^{}$

$\qquad \tt \dashrightarrow \: a= 153.86 \: \: km²$

$\qquad \tt \dashrightarrow \: area \approx 154\: \: km²$

Answer 2

The area of the circle formula --> $\pi r^2$

• $\pi$ ≈ 3.14

• r: length of radius --> 7km

            Length of radius is half of diameter which is 14km long

        $Area = \pi r^2=\pi (7km)^2=(49\pi )km^2=153.86km^2$  

Hope that helps!