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Question 1
A and Bare two sets of parallel lines. The number of lines in Ais greater than the number of lines in B.They intersect at 12 points. The number of parallelograms that A and Bmay form is:
Question 2
The base of a right prism is an equilateral triangle of area 346 sq. cm and the volume of the prism is 17300 cubic cm. The lateral surface area of the prism is: (use √3 = 1.73, √2 = 1.40)
Question 3
A cone of radius 9 cm and slant height 15 cm is melted and used to form a sphere. What will be the radius of sphere?
Question 4
In the given figure, four identical semicircles are drawn in quadrant. XA = 7 cm What is the area (in cm2) of shaded region?
Question 5
A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm) of all the 8 parts?
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May 11CDS & Defence