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Important questions for Mensurations Class 8 maths CBSE Part 3



In this page we have Important questions for Mensurations Class 8 maths CBSE Part 3 . Hope you like them and do not forget to like , social share and comment at the end of the page.
Question 1
 There are two cuboidal whose dimensions are given below. Which box requires the higher amount of material to make?
Cuboid A:  L=23, B=30, H=40
Cuboid B:  L=30, B=12, H=44
Question 2
Three cubes, each of edge 2 cm. long are placed together. Find the total surface area of the cuboid so formed?
Question 3
 Find the side of a cube whose surface area is 2400 cm2.
Question 4
 Meghna painted the outside of the cabinet of measure 2 m × 3 m × 2.5 m. How much surface area did she cover if she painted all except the bottom of the cabinet and back side?
Question 5
 Ahmed is painting the walls and ceiling of a cuboidal hall with length, breadth and height of 25 m, 12 m and 8 m respectively. From each can of paint 200 m² of area is painted. How many cans of paint will she need to paint the room?
Question 6
A open cylindrical tank of radius 14 m and height 3 m is made from a sheet of metal. How much sheet of metal is required?
Question 7
 The lateral surface area of a hollow cylinder is 4224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?
Question 9
A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length is 1 m.

Question 10
A rectangular sheet of metal foil is 88 cm. long and 20 cm. wide. A cylinder is made out of it, by rolling the foil along width. Find the volume of the cylinder.
Question 11
 The perimeter of the floor of a hall is 250 m. If the height is 4 m, find the cost of painting the four walls at the rate of Rs. 12 per square meter.
Question 12
 How many times do the volume and surface area of a cube increase if its edges get tripled.
Question 13
 How many times do the volume and surface area of a cylinder increase if its radius doubled and height remains same
Question 14
 How many times do the volume and surface area of a cylinder increase if its radius remains same and height is doubled
Question 15
The height of a cylinder is 15 cm. and curved surface area is 660 cm2. Find the radius of the cylinder

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