Step-by-step explanation:
Total surface area of cuboid= 2(lb+bh+hl)
= 298ft²=2(28+4x+7x)
= 149=28+11x
= 121=11x
= 11=x
What do your question contain of?
Answer:
Well, I don't have further explanation to this question but I know the answer which is: The x-axis is the only line of symmetry
