## Welcome Guest

### Mathematical Skills | Mensuration

 Q. No. 1: Let 's' be the number of sides of a regular polygon. What is the least value of 's' for which the number of points of intersection of the diagonals is more than the sum of the numbers of sides and number of diagonals of the polygon? A : 5 B : 6 C : 7 D : 8 Solution
 Q. No. 2: A cuboid of size 5.2m x 13m x 39m is completely cut into 'p' small cubes. If p has the minimum possible value, what is the total surface area of each cube? A : 6164 sq m B : 3452 sq m C : 6760 sq m D : 6084 sq m Solution
 Q. No. 3: A solid cube into three solids such that two of them are cuboids with two dimensions exactly half the bigger cube and the third dimension same as the original cube. The third solid has to dimensions same as the original cube. Find the ratio of total surface area of the smaller cubes and the other solid. A : 5:8 B : 3:5 C : 5:12 D : 6:5 Solution
 Q. No. 4: A child consumed an ice cream of inverted right-circular conical shape from the top and left only 12.5% of the cone for her mother. If the height of the ice-cream cone was 8cm, what was the height of the remaining ice cream cone ? A : 2.5 cm B : 3.0 cm C : 3.5 cm D : 4.0 cm Solution
 Q. No. 5: In a rocket shape firecrackers, explosive powder is to be filled up inside the metallic enclosure. The metallic enclosure is made up of cylindrical base and conical top with the base of radius 8cm. The ratio of height of cylinder and cone is 5:3. A cylindrical  hole is drilled through the metal solid with height one-third the height of metal solid. What should be the radius of the hole, so that volume of the hole (in which gun powder is to be filled up) is half of the volume of metal solid after drilling ? A : 4√3  cm B : 4 cm C : 3 cm D : None of these Solution
 Q. No. 6: A right circular cone is enveloping a right circular cylinder such that the base of the cylinder rests on the base of the cone. If the radius and the height of the cone is 4cm and 10 cm respectively, then the largest possible curved surface area of the cylinder of radius 'r' is : A : 20πr2 B : 5πr(4-r) C : 5πr(r-4) D : 5πr(2-r) Solution
6  1
 Mensuration Easy Moderate Difficult