Given `bar(AB)` of length 7.3 cm and `bar(CD)` of length 3.4 cm, construct a line segment `bar(XY)` such that the length of `bar(XY)` is equal to the difference between the lenghts of `bar(AB)` and C̅D. Verify by measurement.

Draw bar(AB) of length 7.3 cm and find its axis of symmetry.

With bar(PQ) of length 6.1 cm as diameter,draw a circle.

If the lengths of the sides of a DeltaABC are 3,4 and 5cm , then the distance between its incentre and circumcentre is

If the lengths of the sides of a DeltaABC are 3,4 and 5cm , then the distance between its orthocentre and circumcentre is

Draw a circle of radius 3.5 cm and construct a chord of length 6cm in it.Measure the shorted distance between the centre and the chord.

Glycerine flows steadly through a horizontal tube of length 1.5 m and radius 1.0 cm. IF the amount of glycerine collected per second at one end is 4.0 times 10^-3 kg s^-1 . What is the pressure difference between the two ends of the tube?(density of glycerine =1.3 times 10^3 kg m^-3 and viscosity of glycerine =0.83 Pa s).[You may also like to check If the assumption of laminar flow in the tube is correct]

Draw a line / and a point X on it. Through X, draw a line segment bar(XY) perpendicular to l. Now draw a perpendicular to bar(XY) at Y. (use ruler and compasses)

Draw a line segment of length 12.8 cm. Using compasses, divide it into four equal parts. Verify by actural measurement.

If A and B are two events such that P(A cup B) =3/4 ,P(A cap B) = 1/4 and P(bar(A)) =2/3 then P( bar(A) capB) is equal to