CTET Solved Paper - CTET September 2015
cm wide and its height is 
. The box is filled with cubes each of side 
cm. The number of cubes will be
- Option : D
- Explanation : (D) Perimeter of trapezium = 58 cm
Sum of its non-parallel sides = 20 cm
Sum of parallel sides = (58 - 20) = 38 cm
Let 'd' be the distance between parallel sides.
∴ d = 8 cm
∴ Distance between the parallel sides = 38 cm
- Option : C
- Explanation : (C) Let the number of sides of the polygon be n.
⇒ 156n = 180n - 360
⇒ 180n - 156n = 360
⇒ 24n = 360
⇒ n = 360/24
∴ n = 15
94. If the number of sides of regular polygon is n, then the number of lines of symmetry is equal to
- Option : B
- Explanation : (B) For the n number of sides of a regular polygon, there are n number of lines symmetry.
- Option : B
- Explanation : (B) A triangle can be formed only when sum of two sides of triangle is greater than the third side. Hence, the smallest possible value of x will be 4.
i.e. 6.5 + 10 > 4
6.5 + 4 > 10
4 + 10 > 6.5
∴ Option (2) is correct.
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