Answer:
7056m3
Step-by-step explanation:
To find the volume of a rectangle you have to multiply length by the width by the height.
42×12×14=7056m3
m3= metres cubed
10 square root of 3
the answer is b 412
formula A=2(wl+hl+hw)
2((16 x 6)+(16x5)+(6x5))
2(96+80+30)
2(206)
A=412
so b 412 would be the answer
hope it will be helpful to you