So the formula is: (x-h)^2+(y-k)^2=r^2
(x-11)^2+(y+9)^2=144
:)
PART A:
1) plug in values given to you in the area formula: A=b^2--> 788=s^2
2) solve for x: x=28.071
PART B:
1) find he perimeter formula of a square: P=4s s being a side
2) plug in the value you got for part a as s: P=4(28.071) therefore, P=112.285
