Answer:
Step-by-step explanation:
The perimeter of a circle is the circumference of the circle. To find it, use the formula .
The diameter here is two times the radius x, d = 2x. But here it has been decreased by 2 so it becomes d = 2x - 2.
Substitute into the formula.
15 624/1000 is it supposed to be sipplified?
Answer:9
9
combine like terms!
x = 6
0 = x^2 -12x + 36 solve by factoring ...or Quadratic Formula
0 = ( x-6)(x-6) shows zeroes ( both of them) are x = 6