Advertisements
Advertisements
प्रश्न
The ratio of the area of a circle to the area of its semicircle is
विकल्प
2 : 1
1 : 2
4 : 1
1 : 4
Advertisements
उत्तर
The ratio of the area of a circle to the area of its semicircle is 2 : 1
APPEARS IN
संबंधित प्रश्न
From each of the two opposite corners of a square of side 8 cm, a quadrant of a circle of radius 1.4 cm is cut. Another circle of radius 4.2 cm is also cut from the centre as shown in the following figure. Find the area of the remaining (Shaded) portion of the square. (Use π = 22/7)
In the following figure, If ABC is an equilateral triangle, then shaded area is equal to
The cost of fencing a circular field at the rate of Rs 25 per metre is Rs 5500. The field is to be ploughed at the rate of 50 paise per m2 . Find the cost of ploughing the field. [Take `π =22/7`].
In the given figure, O is the centre of the bigger circle, and AC is its diameter. Another circle with AB as diameter is drawn. If AC = 54 cm and BC = 10, find the area of the shaded region.
A circle of the largest area is cut from a rectangular piece of cardboard with dimensions 55 cm and 42 cm. Find the ratio between the area of the circle cut and the area of the remaining card-board.
Find the area of the shaded portion in each of the following diagrams:
(i)
(ii)
If the perimeter of a semicircular protractor is 72 cm where `pi = 22/7`, then the diameter of protractor is ____________.
Find the diameter of a circle whose area is equal to the sum of the areas of the two circles of radii 24 cm and 7 cm.
Area of a circle with diameter ‘m’ radius ‘n’ and circumference ‘p’ is ______.
If radius of a circle is increased to twice its original length, how much will the area of the circle increase?
