Question

Find the area of a circle if the diameter is 1.4 ft

Answer 1

The area of a circle is given by the following formula

`A=r^2\pi`

Where r represents the radius of the circle.

We have a circle with a diameter equal to 1.4 ft. The radius is half of the diameter, this means the radius of our circle is

`r=(d)/(2)=(1.4)/(2)=0.7`

Using this value in our formula, we have

`A=(0.7)^2\cdot\pi=0.49\cdot3.14=1.5386\approx1.5`

The area of this circle is 1.5 ft².