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Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
The radius of a cylindrical tank is 7 meters, and its height is 14 meters. How much water will it take to fill the tank to half its capacity?
A hollow spherical metallic ball has an external diameter 12cm and is 3/2cm thick. Find the surface area of the ball (in cm2) is.
A right circular cone is surmounted by a hemisphere. The base radius of the cone is equal to the radius of the hemisphere. The diameter of the hemispher...
The difference between the length and breadth of a rectangle is 13 m. If its perimeter is 186 m, then its area is
The diagonal of a square is √32 cm. What is the area of the square?
Each interior angle of a regular polygon is 140°. Then find out how many diagonals are there?
A boy is supposed to distribute Rs.2400 among his three friends P, Q and R in the ratio of 4:3:5 respectively, but mistakenly he distributed in the rati...
Which of the following numbers is a divisor of (4915 – 1)?
A cylinder has a radius of 4 cm and a height of 10 cm. A cone with the same radius is placed inside the cylinder, touching the bottom and the sides. If ...
