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Solution for Find the Lateral Surface Area and Total Surface Area of a Cuboid of Length 80 Cm, Breadth 40 Cm and Height 20 Cm. - CBSE Class 9 - Mathematics

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Question

Find the lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40
cm and height 20 cm.

Solution

It is given that
Cuboid length= 80cm= L
Breath = 40cm=b
Height=20cm=h

WKT,
Total surface area = `2[lb+bh+hl]`

`=2[(80)(40)+40(20)+20(80)]`

`=2[3200+800+1600]`

`=2[5600]`

`=11,200cm^2`

`Lateral  surface  area = 2[l+b]h=2[80+40]20`

`=40(120)`

`=4800cm^2`

  Is there an error in this question or solution?

APPEARS IN

 R.D. Sharma Mathematics for Class 9 by R D Sharma (2018-19 Session) (with solutions)
Chapter 18: Surface Areas and Volume of a Cuboid and Cube
Q: 1
Solution for question: Find the Lateral Surface Area and Total Surface Area of a Cuboid of Length 80 Cm, Breadth 40 Cm and Height 20 Cm. concept: Surface Area of a Cuboid and a Cube. For the course CBSE
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