1. The perimeter of a triangle is 54 m and its sides are in the ratio of 5 : 6 : 7. The area of the triangle is
(a) 27√2 m^2
(b) 25 m^2
(c) 18 m^2
(d) 54√6 m^2
2. The lengths of two parallel sides of a trapezium are 6 cm and 8 cm. If the height of the trapezium be 4 cm, then its area is
(a) 30 sq cm
(b) 30 cm
(c) 28 cm
(d) 28 sq cm
3. If the ratio of an external angle and an internal angle of a regular polygon is 1 : 17, then the number of sides of the regular polygon is
(a) 36
(b) 12
(c) 20
(d) 18
4. In ∆ABC, the medians AD, BE and CF intersect each other at the point G. If the area of ∆ABC is 36 sq cm, then the area (in sq cm) of the quadrilateral BDGF is equal to
(a) 18
(b) 24
(c) 6
(d) 12
5. In ∆ABC, D is the mid-point of BC. Length of AD is 27 cm. N is a point on AD such that the length of DN is 12 cm. The distance of N from the centroid of ∆ABC is equal to
(a) 9 cm
(b) 15 cm
(c) 3 cm
(d) 6 cm
Note : Answers will be updated soon.............
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