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

Short Note

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

Concept: Surface Area of a Cuboid
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APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 18 Surface Areas and Volume of a Cuboid and Cube
Exercise 18.1 | Q 1 | Page 14

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