Question
The radius of a right circular cylinder is 3 times its
height. If the height of the cylinder is 3.5 cm, then what is the volume of the cylinder. (in cubic cm)Solution
Given - h= 3.5cm the radius of a circular cylinder = 3h r=3×3.5=10.5cm Now The volume of the cylinder =πr²h = (22/7) ×10.5×10.5×3.5 = (11×3×21×7)/4 =4851/4=1212.75cm³
If base of a prism is square of side 12 cm & height is 22 cm . What is the volume of prism?
Perimeter of a square is equal to perimeter of a rectangle, if area of square is 441 sq.cm and length of rectangle is two times that of breath. Find the...
If ratio of interior & exterior angle of a regular polygon is 4:5, then number of sides of the polygon is
A closed wooden box of uniform thickness has length, breadth and height 20cms, 16cms and 12 cms respectively. If the thickness of the wooden block is 2 ...
The length of a rectangle is 8 cm more than its breadth. If the area of the rectangle is 192 cm², determine the perimeter of the...
A rectangular paper sheet of dimensions 22cm×12cm is folded in the form of a cylinder along its length. what will be the volume of this cylinder? Take ...
A rectangular water tank is 80 m x × 40 m. Water flows into it through a pipe of 40 sq.cm at the opening at a speed of 10 km/hr. The water level will ...
Area of a rectangle is equal to the total surface area of a hemisphere having volume 4394 cm³ . Find the perimeter of the rectangle if its length is 12...
An iron pillar consists of two parts: one in the shape of a right circular cylinder and the other in the shape of a right circular cone. The radius of b...
The radius of a cylinder is increased by 20%, and its height is decreased by 10%. Find the percentage change in the volume of the cylinder.
Relevant for Exams:
