Question

answer question no 1

Answer 1

surface area of cuboid will be 2(lb+BH+hl)
now put all values of l b h
2(15*10+10+20+20*15)
2(150+200+300)
2*650= 1300
hope it will help

Answer 2

Hope the given solution helps:) Have a great day. Do mark me brainliest if it has really helped you. Thank You.