A solid circular metallic disc of radius 12 inches and thickness 4 inches is melted and shaped into a solid disc of radius 16 inches. What is the thickness of the new disc in inches?
Volume of cylinder = volume of disk therefore, πr2h = πr2h h = (12 × 12 × 4)/(16 × 16) = 2.25 inches
The area of a square is 38 sq. cm more than the area of a rectangle of length 19 cm and breadth 17 cm. What will be the area of incircle of the square?
The sum of the radius and height of a cylinder is 34m. The total surface area of the cylinder is 5984 m². What is the volume (in m³) o...
In triangle ABC, AD is the angle bisector of angle A. If AB = 8.4 cm and AC = 5.6 cm and DC = 2.8 cm, then the length of side BC will be:
If the ratio of the heights of two cones is 3:2 and the diameters are in the ratio 5:6, what is the ratio of their volumes?
AB is the diameter of a circle with center o. P is the point on it If the cone ∠AOP is equal to 98 degrees then ∠OBP will be.
(190/3)% of the raindrops could have been collected, when 2 cm of rain has fallen on a part of land of area 3 km2, in a tank having a 200 m &...
If the radius of a cylinder is 20 cm and its curved surface area is 660 cm2 then find the height of the cylinder?
Find the radius of the largest circle that can be inscribed in a square, if the rectangle of length 40cm * 20cm is constructed in the corners of the sq...
Each side of square ‘A’ is 4 cm less than that of square ‘B’. The perimeter of a rectangle is 3 times the difference of the perimeters of the tw...
