Question

an box in shape of cuboid whose external measures are 40×15×20cm the base ,side faces and back face covered with paper find area of paper needed​

Answer 1

Answer:

Area of paper required = area of base + 2 area of side + area of back

=(80×30)+2(30×40)+(80×40)

=2400+2400+3200

=8000cm²

Answer 2

Answer:

HERE'S YR ANSWER

Step-by-step explanation:

Area of paper required

= area of base + 2 area of side + area of back

=(80×30)+2(30×40)+(80×40)  cm²

=(2400+2400+3200)  cm²

=8000cm²

HOPE IT  REALLY HELPS:)

THANK YOUU