Question

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.

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