1.The area of a triangle whose sides are 15m, 16m and 17m is :
(a) 24 √4 m^2
(b) 24 m^2
(c) 24√21 m^2
(d) None of these
(a) 32 cm^2
(b) 16 cm^2
(c) 24 cm^2
(d) 64 cm^2
3.A rectangle plot is 116 * 68 m^2. It has a gravel path 2.5 m wide all around in it. Find the area of the gravel path?
(a) 945 m^2
(b) 900 m^2
(c) 895 m^2
(d) 885 m^2
4.The sides of a rectangular field of 432 m^2 are in the ratio of 4 : 3 . Find the sides:
(a) 16 m, 12 m
(b) 12 m, 36 m
(c) 24 m, 18 m
(d) 32 m, 24 m
5.The length of a rectangle is increase by 50%. By what % should the width be decreased to maintain the same area?
(a) 33 ½ %
(b) 25%
(c) 33 1/3 %
(d) 37 ½ %
6.The area of an equilateral triangle inscribed in a circle is 9√3 cm^2. The area of the circle is :
(a) 8√3 cm^2
(b) 13π cm^2
(c) 12π cm^2
(d) 36π cm^2
7.What is the area of a triangle having perimeter 32cm, one side 11cm and difference of other two sides 5 cm?
(a) 8√30 cm^2
(b) 5√35 cm^2
(c) 6√30 cm^2
(d) 8√2 cm^2
8.If the are a of square is 3√3 times the area of an equilateral triangle, then the ratio of the sides of the square to the side of the equilateral triangle is equal to :
(a) 2 :3
(b) 4 : 3
(c) 5 : 2
(d) 3 : 2
9.The base and altitude of a right angled triangle are 12 cm and 5 cm respectively. The perpendicular distance of its hypotenuse from the opposite vertex is:
(a) 4 4/13 cm
(b) 7 cm
(c) 4 8/13 cm
(d) 5 cm
10.The area of a circular field is equal to the area of a rectangular field. The ratio of the length and the breadh of the rectangular field is 14 : 11 respectively and perimeter is 100 meters. What is the diameter of circular field?
(a) 14 m
(b) 22 m
(c) 24 m
(d) 28 m
Answers and Solution:
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