Area related to Circle | Ex : 12.2| Part 1

Volume & Surface area Ex : 13.1

(a). Calculate the area enclosed by a circle of radius 0.56 m to the correct number of significant figures. (b) . Calculate the area enclosed by a circle of diameter 1.12 m to the correct number of significant figures.

The area enclosed by the circle x^2+(y+2)^2=16 is divided into two parts by the x-axis. Find by integration, the area of the smaller part.

The radius of a circle is stated as 2.12 cm. Its area should be written as

The locus of the centre of a circle touching the circle x^2 + y^2 - 4y -2x = 2sqrt3 - 1 internally and tangents on which from (1,2) is making a 60^@ angle with each other is a circle. then integral part of its radius is

The side length of a square inscribed in a circle is 2. what is the area of the circle?

The area of the circle centred at (1,2) and passing through (4,6) is

The area of the circle centred at (1,2) and passing through (4,6) is

Three circles with radii 1,2 and 3 inches are externally tangent to one another , as shown in the figure above . The area , in square inches , of the sector of the circle of radius 1 that is cut off by the line segments joining the center of that circle to the centers of the other two circles (the shaded area ) is