RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)

Subject: Maths - Class 8th

Q. No. 7 of Exercise 21.3

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7

Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.

Given,


Dimensions of closed box = 25 cm×0.5 m× 15 cm = 25 cm ×50 cm × 15 cm


So,


Area of cardboard required =


=


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