Question

The figure shows a circular courtyard it's radius is 38 m.

Answer 1

Given:

Radius of the circular courtyard, r = 38 m

Let's solve for the following:

(a) Let's find the circumference and the Area of the circular courtyard.

To find the circumference, apply the formula:

`C=2\pi r`

Where:

π = 3.14

r = 38 m

Thus, we have:

`\begin{gathered} C=2\ast3.14\ast38 \\ \\ C=238.64\text{ m} \end{gathered}`

The circumference of the circular courtyard is 238.64 m.

To find the area of the circular courtyard apply the formula:

`\begin{gathered} A=\pi r^2 \\ \\ A=3.14\ast38^2 \\ \\ A=4534.16m^2 \end{gathered}`

(b) A chain will surround the courtyard.

The measure that would be used to find the amount of chain needed is the circumference.

(c) The courtyard will be paved.

The measure that would be the area.

ANSWER:

(a)