Ravish wanted to make a temporary shelter for his car by making a box-like structure with tarpaulin that covers all the four sides and the top of the car (with the front face as a flap which can be rolled up). Assuming that the stitching margins are very small, and therefore negligible, how much tarpaulin would be required to make the shelter of height 2.5 m with base dimensions 4 m × 3 m?
Given,
Height of shelter = 2.5 m
Base dimensions = l×b = 4m×3m
So,
area of tarapaulin needed = lateral surface area of shelter +area of roof
= 2(l+b)h + l×b
= 2(4+3)2.5 +12 = 47 m2