Question

2. Find the area and circumference of the circle to the right.
16.6 m
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Answer 1

Answer with step-by-step explanation:

We are given a circle which is divided into two halves and has a diameter of 16.6 meter. We are to find the area and circumference of the circle to the right.

It means that our radius will be the half of the given diameter.

Radius = 16.6/2 = 8.3 m

Area =
`\pi r^2` =
`(\pi * (8.3)^2)/(2)` = 216.4 m^2

Circumference =
`2 \pi r` =
`2 * \pi * 8.3` = 52.2 m

Answer 2

AREA:

`A=216.42m^2`

CIRCUMFERENCE:

`C=52.15m`

Explanation:

The formula that is used to calculate the area of a circle is:

`A=\pi r^2`

Where "r" is the radius of the circle.

The formula for calculate the circumference of a circle is:

`C=2\pi r`

Where "r" is the radius of the circle.

Then, you need to find the radius. This is:

`r=(16.6m)/(2)=8.3m`

Substituting the radius, you get that the area and the circumference are:

AREA:

`A=\pi (8.3m)^2=216.42m^2`

CIRCUMFERENCE:

`C=2\pi (8.3m)=52.15m`