If two tangents to a circle of radius 3 cm are inclined to each other at angle of 60°, then length of each tangent =

The area of a sector of a circle of radius 7 cm and central angle 60° is ……………

In the figure if BP = 5cm,QC = 7cm and AR = 6 cm, then AB + BC + CA =

The parallelogram containing in a circle is a ……………

Cyclic rhombus is a …………

In the adjacent figure if quadrilateral PQRS circumscribes a circle, then PB + SD =

In the figure $\mathrm{\angle }AOB\backslash angle\; AOB$ =

In the figure $\mathrm{\angle }ACB\backslash angle\; ACB$ =

The set of all points which are equidistant from a fixed point is called a

The line segment joining any two points of a circle is called