In the figure Shown, PT and PAB are Tangent and Secant drawn to a circle. If PT= $12$Cms and PB=$8$Cms.Then AB is equal to?

 

The Length of AC in the figure shown, is

An Equilateral Triangle $∆ABC$ is inscribed in a circle O, then $∟BOC$=?

In the figure shown, O is the centre of the circle, if $\angle ABO=25°$, $\angle ACO=30°$, then $\angle BOC$ is equal to?

In the figure shown, $O$ is the centre of the circle.If $\angle OBC=37°$ and $\angle BAC=x°$. What is the value of $x°$?

Find the value of $\angle PQR$, if it is  known that $PQRS$ is a parallelogram.

Find the distance between two parallel chords $AB$ and $CD$ of lengths $32 units$ and $24 units$, respectively, which arc drawn in a circle of diameter $40 units$.  

In the figure shown, $OC\perp AB$, where $O$ is the centre of the circle. If the chord AB is $12 units$ long and PC is 2 units, what is the value of the radius of the circle?  

In the figure shown, the diameters AB and MN intersect each other at $50°$. Find the value of $\angle MPB$.