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# 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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ConceptSurface Area of a Cuboid and a Cube

#### 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

RD Sharma Solution for Mathematics for Class 9 by R D Sharma (2018-19 Session) (2018 to Current)
Chapter 18: Surface Areas and Volume of a Cuboid and Cube
Ex.18.10 | Q: 1 | Page no. 14
Solution 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.
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