What is the area of a circle with a diameter of 8 meters (use 3.14 for ð)?

a. 50.24 square meters

b. 78.25 square meters

c. 200.96 square meters

d. none of the above

Step-by-step explanation:

The formula of an area of a circle:

r - radius

We have the diameter d = 8 m. We know d = 2r. Therefore

           divide both sides by 2

Put it to the formula of an area:

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.