Answer:
The general equation of circle is given by:
(x-h)² + (y-k)² = r², where, (h,k) is the center and 'r' is the radius of circle.
Here, (h , k) = (0, 0) and r = 12
∴ Equation of circle is (x-0)² + (y-0)² = 12²
or, x² + y² =144
check the picture below.
recall that in a square, all four sides are equal, therefore b = a.
so the perimeter is then 6√2 + 6√2 + 6√2 + 6√2, or 24√2.
Answer:A= -2.50x + 45
Step-by-step explanation: