Assuming that n = 3.14, determine the circumference and area of the circle if radius = 7.

In order to determine the circumference of a circle, you must use the following formula:

C = 2 * п * r.

Substituting the known values into the formula, we get:

C = 2 * 3.14 * 7 = 6.28 * 7 = 43.96 cm.

To determine the area of a circle, it is customary to use the following formula:

S = п * r^2.

If we substitute the known values into the formula, we get:

S = 3.14 * 7 * 7 = 3.14 * 49 = 153.86 cm2.

Answer: Circumference 43.96 cm, area of a circle 153.86 cm2