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Question 1
The radii of two cylinders are in the ratio 2 : 3 and their curved surfaces areas are in the ratio 5 : 3. What is the ratio of their volumes?
Question 2
The radius of a hemisphere is 14 cm, find its volume?
Question 3
Three circular discs of radius 7 cm were kept closed together such that the lines joining their centers form a triangle. Find the area of the triangle?
Question 4
The radius and the height of a cone are each increased by 20%. Then the volume of the cone increases by
Question 5
A cone of height 25 cm and diameter 21 cm is mounted on a hemisphere of the same diameter. Find the volume of the solid thus formed? (Take n = 22/7)
Question 6
The area of a rectangle in 60 cm2 and its perimeter is 34 cm, then the length of the diagonal is
Question 7
The perimeter of four squares is 4√3 cm, 20 cm, 16 cm and 40 cm respectively. Find the perimeter of the square whose area is equal to the sum of the areas of these squares ?
Question 8
The height of a right prism is 7 cm. The base of the prism is a square having diagonal 6 cm. Find the volume of prism.
Question 9
Ms. Thara prepares circular chocolate truffles of equal size by melting a dark chocolate of length 19 cm, breadth 12 cm, height 2 cm and white chocolate of length 20 cm, breadth 15 cm & height 3 cm. If the spherical chocolate truffle has radius 3 cm, how many would she be left with after serving 2 truffles each to 4 kids.
Question 10
If an equilateral triangle is inscribed in a circle whose perimeter is 286 m. Find the difference between the perimeter of the circle and the perimeter of incircle of the equilateral triangle.
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Jun 8CDS & Defence
