Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6 m. The coordinates of the centres of the different parts are: outer cicle (0,0), left circle (-a, a), right inner circle (a,a), vertical line (0,0) and horizontal line (0 ,-a). The y-coordinate of the centre of mass of the ink in this drawing is

Look at the drawing given in the figure which has been drawn with inkl of uniform line-thickness. The mass of ink used to draw each of the two inner circle, and each of the two line segments is m. The mass of the ink used to draw the outer circle is 6m. The coordinates of the centres of the different parts are: outer circle (0, 0), left inner circle (-a, a), right ineer circle (a, a), verticle line (0, 0) and 1 horizontal line (0, -a). The y-coordinate of the centre of mass of the ink in this drawing is

Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is m . The mass of the ink used to draw the outer circle is 6m . The coordinates of the centres of the different parts are: outer circle (0, 0) , left inner circle (-a, a) , right inner circle (a, a) , vertical line (0, 0) and horizontal line (0, -a) . The y -coordinate of the centre of mass of the ink in this drawing is

Look at the drawing given in the figure which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is m . The mass of the ink used to draw the outer circle is 6m . The coordinates of the centres of the different parts are: outer circle (0, 0) , left inner circle (-a, a) , right inner circle (a, a) , vertical line (0, 0) and horizontal line (0, -a) . The y -coordinate of the centre of mass of the ink in this drawing is

To draw a pair of tangents to a circle inclined to each other at an angle of 60^@ , it is required to draw the two radii of the circle intersecting at an angle of

Draw a line segment XY as the diameter of a circle .

Draw a circle and two lines parallel to a given line such that one is tangent and the other, a secant to the circle.

Draw a circle and two line parallel to a given line such that one is a tangent and the other,a secant to the circle.