Question

What is the approximate area of the circle shown?

Answer 1

Answer:

The area of the circle is 254 square unit. ( approx )

Step-by-step explanation:

Given,

The diameter of circle = 18 unit,

⇒ The radius of the circle = $\frac{18}{2}$ = 9 unit,

Since, the area of a circle,

$A=\pi r^2$

Where r is the radius of the circle,

Thus, the area of the circle is,

$A=\pi (9)^2$

$=3.14\times 81$       ( $\pi$ = 3.14 )

$=254.34\text{ square unit}\approx 254\text{ square unit}$

Answer 2

Radius = Diameter ÷ 2 = 18 ÷ 2 = 9

Area of circle = πr² = π(9)² = 286 units²

Answer: 9 units²