Question

Please help me out!?????

Answer 1

30.25π mm²

Explanation:

The area (A) of a circle is calculated using the formula

A = πr² ← r is the radius

here diameter = 11 and radius is half of the diameter. thus

r = 5.5

A = π × 5.5² = 30.25π mm²

Answer 2

`(121)/(4) \pi mm^2`

Explanation

Find the radius

11/2 = 5.5

The formula to find the area of a circle is
`\pi r^2`

`\pi 5.5^2` =
`30.25\pi`

Convert number into fraction.

`30.25 \rightarrow (121)/(4) \pi`

Area =
`(121)/(4) \pi mm^2`