Answer:
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
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