Milk is an example of

If $\tan \theta + \cot \theta = 2$,then $\sin \theta$ is equal to

Let $PS$ be the median of the triangle with vertices $P(2, 2)$,$Q(6, -1)$,and $R(7, 3)$. The equation of the line passing through $(1, -1)$ and parallel to $PS$ is:

If the angles of a triangle are in the ratio $4:1:1,$ then the ratio of the longest side to the perimeter is

$A$ ladder is leaned against a smooth wall and it is allowed to slip on a frictionless floor. Which figure represents the track of its centre of mass?

If the altitudes of a triangle are in arithmetic progression,then the sides of the triangle are in