The answer is 71.
You add all of the numbers to get 289. Then you take 360-289 and get 71.
Surface area= [15*3*2]+[20*3*2]+[10*3*2]+[14*3*2]+[15*3*2]+[14*2.5*2]
surface area=90+120+60+84+90+70=514 in²
the answer is 514 in²
Answer:6.233233414334
Step-by-step explanation:23232121
