Question

The radius of a circle is 1 mlle, What is the circle's area?

Answer 1

π

Explanation:

→ State the formula for the area of a circle

π × r²

→ Substitute in the numbers

π × 1² = π

Answer 2

area = 3.14 mi² (to the nearest hundredth)

Explanation:

Area of a circle =
`\pi r^2`

(where r is the radius)

Given:

• radius = 1 mile

Substitute r = 1 into the equation:

⇒ area =
`\pi` × 1²

⇒ area =
`\pi` mi²

⇒ area = 3.14 mi² (to the nearest hundredth)