M L Aggarwal Solutions for Chapter: Appendix Mathematical Modelling, Exercise 8: CIRCLES

In the diagram given below, what is the degree measure of $\angle \mathrm{ANB}$.

From a point $\mathrm{A}$ which is at a distance of $13 \mathrm{cm}$ from the centre $\mathrm{O}$ of a circle of radius $5 \mathrm{cm}$, the pair of tangents $\mathrm{AB}$ and $\mathrm{AC}$ to the circle are drawn. Then the area of the quadrilateral $\mathrm{ABOC}$ is

The maximum number of common tangents that can be drawn to two circles intersecting at two points is

In the given figure, there are two non-intersecting circles.

How many common tangents can be drawn to these two circles?

In the given figure, there are two non-intersecting circles.

The lengths of $\mathrm{AB}$ and $\mathrm{CD}$ are such that 

Refer to the below figure:

The value of $x$ is 

Refer to the below figure:

What is the radius of the circle?

Refer to the below figure:

The distance of the point $\mathrm{R}$ from the centre of the circle is