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. 8 of Exercise 21.1

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8

What will happen to the volume of a cuboid if its :

(i) Length is doubled, height is same and breadth is halved?


(ii) Length is doubled, height is doubled and breadth is same?

(i) Let ,


Length of cuboid = l


Breadth = b


Height = h


Volume of cuboid = lbh


Now,


Case(i)


Length become = 2l


Height = h


Breadth =


Volume of cuboid =


(ii)


Case(ii)


Length become = 2l


Breadth = b


Height = 2h


Volume of cuboid =


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