Question

This figure is 1/4 of a circle.
What is the best approximation for the perimeter of the figure?
Use 3.14 to approximate pi.

3.1 inches

6.3 inches

7.1 inches

12.3 inches

Answer 1

For this case we have that by definition, the perimeter of a circle is given by:

$C = 2 \pi * r$

Where:

r: It is the radius of the circle.

According to the figure, it is observed that the radius of the circle is 2. Then:

$C = 2 \pi * 2\\C = 2 * 3.14 * 2\\C = 12.56 \ in$

Let's remember that we have a quarter circle:

$C = \frac {12.56} {4}\\C = 3.14$

We round and we have that the correct option is $3.1 \ in$

Answer:

Option A

The attached figure is the image that completes the question

Answer 2

Answer: 7.1

Step-by-step explanation: Took the test its right :)

Hope it helps!!