Answer:
331
558
683
Explanation:
LA = 3.14x8.5x12.4 = 330.9 = 331
SA = 331+3.14x8.5^2 = 557.9 = 558
V = 1/3x3.14x(8.5^2)x(12.4^2-8.5^2)^0.5 = 682.7 = 683
LA = pi*r*l = 3.14*8.5*12.4 = 331
SA = LA + pi*r^2 = 331 + 3.14*8.5^2 = 558
V = 1/3*pi*r^2*h = 1/3*3.14*(8.5^2)*sqrt(12.4^2-8.5^2) = 683
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