Respuesta :
Area (A) = Pi* R^2. if the Diameter (d) =2r, then R=1/2 D. If D=24 millimeters, then R = 12 millimeters. so, back to the original equation, A=3.14 * 12^2. 12^2 =144, so multiply 144 by 3.14. you get 452.16
Answer:
Area of the quarter is 452.16 mm²
Step-by-step explanation:
A quarter has a diameter of 24 mm approximately.
We have to calculate the area of the quarter.
Since area of a quarter = area of a circle = πr²
Where r is the radius
Since diameter of the quarter = 24 mm
Therefore radius = [tex]\frac{24}{2}=12mm[/tex]
Now we put the value of r = 12 mm to calculate the area
Area = (3.14)(12)²
= (3.14)(144)
= 452.16 mm²
Therefore Area of the quarter is 452.16 mm²