the dimensions of two rectangular prisms with volume 240 cm^3 are given. sketch each prism and predict which will have less surface area. check your prediction.

Question

a) 10cm by 6cm by 4cm
b) 12cm by 10 cm by 2cm

Answer 1

my answer:
A) SA= 2((6*10)+(4*10)+(4*6))
SA=2(124)
SA=248cm^2

B) SA= 2((10*12)+(2*12)+(2*10))
SA=2(164)
SA=328cm^2

Answer 2

is my answer correct?

Answer 3

correct