Question
If the radius of a right circular cylinder open at both ends, is decreased by 25% and the height of the cylinder is increased by 20%, then the percentage change in curved surface area of the cylinder thus formed is.
More Mensuration Questions
- The radius of a circle is 10 cm, and the length of the chord is 12 cm. Find the distance between the chord and the centre of the circle.
- The length of each edge of a cube is 2.3 cm. What is the total surface area (in cm²) of the cube?
- A rectangular park with length and breadth of 16m and 20m, is surrounded by a path of 6m wide. Find the area of the path.
- A prism and a pyramid have the same base and the same height. Find the ratio of the volumes of the prism and the pyramid.
- The volume of a cube is 21952 cm 3 in which a maximum possible size of circle is drawn on each face. The circle drawn on each face of the cube is painted ...
- A solid right circular cylinder is melted and shaped into a right cone with a base of equal radius. By what percent is the length of the solid increased?
- Given that the surface area of a sphere is 201.06 cm², calculate its volume.
- The length of a rectangle is 50% more than its breadth. If the area of the rectangle is 294 square metres, what is its perimeter?
- The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 28 cm, then find the area of ...
- The perimeter of a rectangle is 64 cm. The side of a square is equal to the average of the rectangle’s length and breadth. Find the area of the square.
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