Chhattisgarh Board Solutions for Exercise 2: Exercise – 1

With the help of a protractor and a ruler draw the following angles:

$15°, 45°, 105° \& 75°$

Two angles $X$ (obtuse angle) and $Y$ (acute angle) are given. Draw the angles having the following measure.

$X°-Y°$

Two angles $X$ (obtuse angle) and $Y$ (acute angle) are given. Draw the angles having the following measure.

$X°+Y°$

Two angles $X$ (obtuse angle) and $Y$ (acute angle) are given. Draw the angles having the following measure.

$\left(180-X\right)°$

Two angles $X$ (obtuse angle) and $Y$ (acute angle) are given. Draw the angles having the following measure.

$2Y°$

Three line segments of fixed measure $r, s \& t$ are given.

Is it possible to construct a triangle using these line segments? If yes then draw a triangle.

Three line segments of fixed measure $r, s \& t$ are given.

Is it possible to construct a triangle using $s, t \& r+t$?

Draw a triangle $ABC$. Now from $A$ draw a line which is parallel to $BC$ and check the sum of all the angles at vertex $A$ as well as sum of all the angles of the triangle.