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1
If length, breadth, height and total surface area of a cuboid are l, b, h and s respectively, then which of the following relationships is true?
s=2[lb+bh+lh]
s=2[lb-bh+lh]
s=2[lh+bh-lb]
s=2h(l+b)
2
Find the volume of the prism if base area of the prism is 350 sq units and height is 6 units.
2000 cubic units
2100 cubic units
3000 cubic units
3100 cubic units
3
The total surface area of a cube of side 1.1 m is ___________________
1.21
7.26
13.2
4.84
4
The volume of a cube of edge 6 m is ___________________
144m cube
36m cube
18m cube
216m cube
5
Savitri had to make a model of cylindrical Kaleidoscope for her science project. She wanted to use chart paper to make the curved surface of the kaleidoscope. What should be the area of chart paper required by her, if she wanted to make a kaleidoscope of length 25 cm with a 3.5 cm radius?
440 sq cm
550 sq cm
660 sq cm
880 sq cm
6
The edge of a cube of volume 512 is _______________
6cm
8cm
4cm
16cm
7
The surface area of a sphere of radius 5.6 m is __________________ .
8
Find the surface area of a juice can with r= 5 cm and h = 16 cm.
450 sq cm
770 sq cm
9
If the volume of a cube is 1000 cm cube, its total surface area is ____________________
100cm sq
600cm sq
120cm sq
400cm sq
10
A solid cylinder has a total surface area of 231 square centimetre. Its curved surface area is 2/3 of the total surface area. Find the volume of the cylinder in cubic centimetre.
269.5
296.5
229.6
292.6
11
The total surface area of the cone is 425 sq m and the radius of the base of the cone is 14 sq m. Find the slant height of the cone.
12
The ratio of lateral surface area to total surface area of a cube is _________________
2:3
3:2
1:2
4:3
13
The area of the base of the right circular cylinder is 154 sq cm and its height is 15 cm. Find the volume of the cylinder in .
2310
2501
2450
2365
14
The surface area of a cube is 1176 . The volume of this cube is ______________
7056
4704
2744
294
15
The radius of a cylinder is doubled but its lateral surface area is unchanged, then its height must be:
Doubled
Halved
Trebled
Constant
16
If the length, breadth ,height, volume, total surface area and lateral surface area of a cuboidal box are l, b, h, v, S1 and S2 respectively, then which of the following relations is true?
l=b/v X h
b=v/l X h
S1=2h(l + b)
S2=2(lb + bh + lh)
17
A rectangular cubical piece of metal of dimensions 2 cm x 3 cm x 4 cm is melted. Some more of the metal is added and it is made into a cube. The cube has integral measures for its sides. What is the minimum amount of metal that is added and what is the side of this cube ?
18
A right circular cone is 3.6 m high and radius of its base is 1.6 cm. It is melted and recast into a right circular cone with radius of its base as 1.2 cm. Find its height.
6.4 cm
5.3 cm
7.3 cm
5.6 cm
19
The percentage increase in the surface area of a cube when each side is doubled is
25%
50%
150%
300%
20
A hemisphere has thickness 3.15 cm. The inner radius is 6 cm. Find the outer curved surface area.
none of these