Answer:
jhv
Step-by-step explanation:
kjbb
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
Half of a circle
1 circle=360
1/2 circle=360/2=180
1/2 circle cut into 1/3
180 times 1/3=60
60 degreees
