Question

What is the best approximation for the area of a circle with a diameter of 13 meters?
Use 3.14 to approximate pi.
0 40.8 m2
O 81.6 m2
132.7 m
0 530.7 m2​

Answer 1

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

$A = \pi * r ^ 2$

Where:

r: It is the radius of the circle

According to the statement we have:

$r = \frac {13} {2} = 6.5 \ m$

Substituting:

$A = \pi * (6.5) ^ 2\\A = 3.14 * 42.25\\A = 132.665$

We round, and we have that the area of the circle is approximately:

$A = 132.7 \ m ^ 2$

Answer:

Option C