direct and Inverse proportion
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Length =50
Breadth=40
Height=25
As given in question top face and front face is not painted
so total area to be painted = Total Surface Area - (Area of top face + Area of front face)
Total surface area = 2*(50*25)+2*(40*25)+2*(50*40)
Top face area= 50*40 =2000
Front face area =50*25 =1250
Required area= 1250+2000+2000=5250 cm^2
Breadth=40
Height=25
As given in question top face and front face is not painted
so total area to be painted = Total Surface Area - (Area of top face + Area of front face)
Total surface area = 2*(50*25)+2*(40*25)+2*(50*40)
Top face area= 50*40 =2000
Front face area =50*25 =1250
Required area= 1250+2000+2000=5250 cm^2
kuljeetpaul:
wrong
Sorry I also added front face i will correct it
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