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“What is the different between height and radius of solid cylinder?” Which of the following option is sufficient alone to find the answer? A) A solid cylinder is made by melting a solid sphere. The radius of cylinder is 3 times the radius of a circle whose area is 154 sq.m. Height of cylinder is equal to the height of cone whose volume is 2772 cubic meters. B) Area of a rectangle whose longer side is ¾ times the radius of a solid cylinder, is 168 sq.m and, Volume of solid cylinder is 2772 cubic meters and its height is 18 m. C) A metallic cone of radius 15m and height 35m is melted into the solid cylinder of radius equal to the radius of a circle whose area is equal to the area of rectangle whose sides are in the ratio 4 : 3 respectively. D) The curved surface area of the solid cylinder is 3 time the surface area of a sphere of radius 7m and height of cylinder is equal to the height of a metallic cone whose curved surface area is 308 sq.m. 
A solid sphere of radius 13 cm is melted and its some part is used to cast a hollow sphere whose internal radius is 5 cm. What will be the thickness of the sphere if the surface area of solid sphere is equal to the total surface area of hollow sphere?
A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
A solid sphere of diameter 7 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
A sphere whose total surface area is (49π/4) cm2 by mistake a person divide the sphere into two part of hemisphere so that the total surface area of sphere is changed. Find the total surface area of each hemisphere.
In this question two quantities are given. Find and compare them and choose the appropriate options. A cylinder of radius R and height H has the same volume as that of a sphere of radius r. The surface area of sphere is more than the curved surface area of cylinder. Quantity I: x, where 9x – 2 = 0 Quantity II: R/H; where a cylinder of radius R and height H has the same volume as that of a sphere of radius r. The surface area of sphere is more than the curved surface area of cylinder.
A solid sphere of diameter 5.6 cm is cut into two equal halves. What will be the increase in the total surface area?
Largest possible sphere is cut from a hemisphere of total surface area 665.28 cm2, then what is the difference between surface area of newly formed sphere and total curved surface area of original hemisphere?
To make a puzzle piece, a cardboard block of dimensions 9 cm × 5 cm is cut along the dotted lines as shown below. Each semicircle cut from the length of the cardboard have an area of 2π cm2, while each semicircle cut from the breadth of the cardboard have an area of π/2 cm2. If the four triangles cut from the corners are equilateral triangles, each having an area of √3/4 cm2, then find the perimeter of the puzzle piece so formed?
The ratio of total surface area and volume of a sphere is 1 ∶ 7. This sphere is melted to form small spheres of equal size. The radius of each small sphere is 1/6th the radius of the large sphere. What is the sum (in cm2) of curved surface areas of all small spheres?