Find the circumference and area of a circle with a diameter of 10 inches. leave your answers in terms of pi.

a)c = 5π; a = 20π

b)c = 10π; a = 20π

c)c = 10π; a = 25π

d)c = 5π; a = 25π

C)  C = 10π ;   A=25π

Step-by-step explanation:

We are ask to find the circumference and area of a circle with a diameter of 10 inches, but we are to leave our answer in terms of  π

First lets start by calculating the circumference.

The formula for calculating circumference of a circle is;

circumference = 2πr    where r=radius

But we were given diameter in the question to be 10, r =  = = 5

We can now proceed to insert our value into the equation

Circumference = 2 × π × 5  = 10π

Lets now go ahead to calculate the area of the circle

To calculate area of the circle, we use the formula;

Area = πr²

         = π×5×5

          =25π

Therefore C = 10π   and   A=25π

step-by-step explanation: