Straight angle

Match the following : (i) straight angle (a) Less than one-fourth of a revolution (ii) Right angle (b) More than half a revolution (iii) Acute angle (c) Half of a revolution (iv) Obtuse angle (d) One-fourth of a revolution (v) Reflex angle (e) Between 1/4 and 1/2 of a revolution (f) One complete revolution

Where will the hour hand of a clock stop if it starts (a) from 6 and turns through 1 right angle? (b) from 8 and turns through 2 right angles? (c) from 10 and turns through 3 right angles? (d) from 7 and turns through 2 straight angles?

Which of the following pair of straight lines intersect at right angles ?

Angles: Right And Straight|Angles: Right And Straight|OMR

Angles: Right And Straight|Angles: Right And Straight|OMR

Acute Angle Bisector Between Plane || Straight Line: Angle between Line & Plane|| Condition to 3 Points being Collinear|| Unsymmetrical form OF Line & Examples

If a bar of givenlength moves with its extremities on two fixed straight lines at right angles,then the locus of any point on bar marked on the bar describes a/an :

A bar of given length moves with its extremities on two fixed straight lines at right angles.Show that any point on the bar describes an ellipse.