Find the lateral surface area and total surface area of a cuboid whose length,breadth and height are 20cm, 10cm and 40cm respectively.
Note : please give the answer with steps.
Answers
Answered by
42
LSA OF CUBOID =2(l+b)h
2(20+10)40
=2400squnits
TSA OF CUBOID =2(lb+bh+lh)
2(20×10+10×40+40×20)
=2800squnits
2(20+10)40
=2400squnits
TSA OF CUBOID =2(lb+bh+lh)
2(20×10+10×40+40×20)
=2800squnits
Answered by
28
Total surface area=2(lb+bh+hl)
2×(20×10+10×40+40×20)
2×(200+400+800)
2×1400
Total surface area=2800cm sq.
Lateral surface area=2×(bh+hl)+lb
2×(10×40+40×20)+20×10
2×(400+800)+200
2×1200+200
2400+200=2600
Lateral surface area=2600cm sq.
2×(20×10+10×40+40×20)
2×(200+400+800)
2×1400
Total surface area=2800cm sq.
Lateral surface area=2×(bh+hl)+lb
2×(10×40+40×20)+20×10
2×(400+800)+200
2×1200+200
2400+200=2600
Lateral surface area=2600cm sq.
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