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* 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!