Answer:
12.56x^2+452.16
Step-by-step explanation:
A=pie r^2
(4x-24)/2= 2x-12 which is your radius
(2x-12)^2=4x^2+144
Pie=3.14ish
3.14(4x^2+144)
12.56x^2+452.16
Answer:
Step-by-step explanation:
The formula for the area of a circle is
A = πr². We need the radius, r, to calculate the circle.
If the diameter of the circle is 4x - 24, then the radius is half that, or
2x - 12.
Then the area of the circle in question is A = πr², or
A = π(2x -12)²
If desired, this could be expanded:
A = π(4)(x - 6)² = 4π(x^2 -12x + 36)