Question

Find the area of the circle to the nearest tenth, if n=3.14 and a=5in.

a.78.5
b.69.4
c.31.5
d.47.5

Answer 1

Answer:

a. 78.5

Step-by-step explanation:

We want to find the area of a circle with radius

$r = 5in$

The formula for calculating the area of a circle is

$Area = \pi {r}^{2}$

We substitute r=5 inches and π=3.14 into the formula to get.

$Area = 3.14 \times {5}^{2}$

$Area = 3.14 \times 25 = 78.5 {in}^{2}$