We can use the formula for the area of circle which is A = πr².
Find the diameter by dividing 7 and 2 which you get 3.5.
Substitute with the given values; A = (3.14)(3.5)².
Solve for the exponent; A = (3.14)(12.25).
Multiply; A = 38.465.
~Good luck
<span>The nervous system controls the functioning of all the organs of our body. Its is like a central system which acts like a communication network. It regulates the functioning of the body by directing the organs to perform the tasks properly. Thus, the nervous system in our body controls the functioning of the body organs.</span>
