Answer:
16+h=c
Step-by-step explanation:
644 cm^2
10*7*2+12*7*2+12*10=140+168+120=428
10*12-3*3=111
428+111=539
8*3*4+3*3=96+9=105
539+105=644
33562, You could have used a calculator, or used your head, why