In the figure, find the perimeter of AABC.
A. 21 units.
B. 23 units
C. 36 units.
D. 54 units

Answer:C. 36
Step-by-step explanation: height is 12 base is 9
12^2+9^2= 144+81=225 sq rt of 225 =15
So 12+9+15=36