Question

Find the circumference and area of a circle with diameter 6 inches. Use 3.14 for π

Answer 1

Recall the definition of the area of a circle that is given by

`A=\pi r^2`

Since we have the diameter of the circle, the radius is 3in. So,

`A=(3.14)3^2=(3.14)9=28.26`

Now, to find the circumference

`C=D(3.14)=(6in)(3.14)=18.84`

Where D is the diameter. Thus, the area is 20.26 square inches and the circumference is 18.84 inches