The inside of a bowl is part of a sphere. When water is put into the bowl to a depth d, the water surface becomes a circle of radius 2d. What is the radius of the sphere?
3d
Using the geometry of the sphere and the given radius, the radius of the sphere is found to be 3d. Hence, the correct answer is (c) 3d.
If the material weighs 2000 kg per cubic metre, then what is the weight of the material used in the construction of the box?
If water weighs 1000 kg per cubic metre, then what is the weight of the box with water?
If the sum of slant height, height, and radius is (9 + √3) cm, then what is the volume of the cone?
What is the whole surface area of the frustum?
What is the inner radius of the circular opening of the pot so formed?
What is the area of triangle EOF?
What is the area of trapezium AEFB?
What is the area of the shaded region?
What is the area of the shaded region?
A spherical wooden ball of radius \(r\) is to be divided into eight identical parts by cutting by planes passing through the same diameter. What is the surface area of each final piece?
A solid cube is painted yellow, blue and black such that opposite faces are of same colour. The cube is then cut into 36 cubes of two different sizes such that 32 cubes are small and the other four cubes are Big. None of the faces of the bigger cubes is painted blue. How many cubes have only one face painted?
A and B are two heavy steel blocks. If B is placed on the top of A, the weight increases by 60%. How much weight will reduce with respect to the total weight of A and B, if B is removed from the top of A?
A gardener increased the area of his rectangular garden by increasing its length by 40% and decreasing its width by 20%. The area of the new garden
A village having a population of 4000 requires 150 liters of water per head per day. It has a tank measuring 20 m x 15 m x 6 m. The water of this tank will last for
The centroid of an equilateral triangle ABC is G. If AB is 6 cms, the length of AG is