Imagine that plaque uniformly coats the walls of the blood vessel in the diagram. Based on the diagram, what is the reduced area inside the blood vessel? Round your answer to the nearest tenth. The equation for the area of a circle is A=pir^2 , where A is the area , pi =3.14, and r is the radius. Recall that the radius is half of the diameter.

12.56

Explanation:

Given:

Diameter (d) of the reduced area inside the blood vessel = 4

Area of circle = πr²

π = 3.14

Required:

Area of the reduced area inside the blood vessel

SOLUTION:

Aea of circle = area of the reduced area inside the blood vessel = πr²

Where,

r = ½ of diameter = ½*4 = 2

π = 3.14

Plug the values of π and r into the equation

Area = 3.14*2²

Area = 3.14*4

Area = 12.56