1. How many diagonal does a regular polygon has if it’s interior angle is 150°?
(a) 64
(b) 81
(c) 27
(d) 54
2. A cone, a hemisphere and a cylinder stand on equal bases and have the same height. Ratio of their volumes is
(a) 1 : 2 : 3
(b) 2 : 3 : 1
(c) 3 : 1 : 2
(d) 2 : 1 : 3
3. Find the ratio of the area of an equilateral triangle and a square having equal perimeter
(a) 4∶√3
(b) √3 ∶4
(c) 3√3 ∶4
(d) 4∶ 3√3
4. A cone of height 12 cm and radius 14 cm is to be divide into two parts by cutting through the mid-point of vertical axis. Then, the volume of conical part is
(a) 616 cm^3
(b) 692 cm^3
(c) 308 cm^3
(d) 346 cm^3
5. The radii of two right circular cylinders are in the ratio 3 : 4 and heights are in the ratio 4 : 5. The ratio of their curved surface area is
(a) 3 : 4
(b) 4 : 5
(c) 5 : 3
(d) 3 : 5
6. In each of the dimensions of a rectangle is increased by 100%, its area is increased by
(a) 100%
(b) 200%
(c) 300%
(d) 400%
Answers Key:
1.d
2.a
3.d
4.c
5.d
6.c
7.c
8.b
9.c
10.b
1.d
2.a
3.d
4.c
5.d
6.c
7.c
8.b
9.c
10.b
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