Skip to content
Philoid
Browse Saved
Back to chapter
Maths
21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)
Home · Class 8 · Maths · Ref. Book · 21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)
Prev
Next
Q7 of 77 Page 22

What will happen to the volume of a cube, if its edge is

(i) halved (ii) trebled?

Given,


Let edge of cube = a


So volume of cube = a3


Case (i)


Edge become =


Volume become = =


Case (ii)


Edge becomes = 3a


Volume become =


More from this chapter

All 77 →
5

A milk container is 8 cm long and 50 cm wide. What should be its height so that it can hold 4 litres of milk?

6

A cuboidal wooden block contains 36 cm3 wood. If it be 4 cm long and 3 cm wide, find its height.

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?

9

Three cuboids of dimemsions 5 cm × 6cm × 7cm, 4cm × 7cm × 8cm and 2 cm×3 cm× 13 cm are melted and a cube is made. Find the side of cube.

Questions · 77
21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved