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Daniel is painting the walls and ceiling... so the area to find is=area of walls+ area of ceiling
area=CSA of cuboid + area of top of cuboid
area=2h(l+b) + 2(l+b)
area= 2*7(15+10) + 2*(15+10)
area=14(25) + 50
area= 350+50
area= 400 sq m
1 can of paint is used per 100 sq m
no of cans used=400/100
no of cans used is 4.
area=CSA of cuboid + area of top of cuboid
area=2h(l+b) + 2(l+b)
area= 2*7(15+10) + 2*(15+10)
area=14(25) + 50
area= 350+50
area= 400 sq m
1 can of paint is used per 100 sq m
no of cans used=400/100
no of cans used is 4.
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