Will the lengths of line segment AB and line segment BC make the length of line segment AC in Fig. 2.33?

Is it possible for the same

(a) line segment to have two different lengths?

(b) angle to have two different measures?

Will the measure of ∠ABC and of ∠CBD make measure of ∠ABD in Fig. 2.32?

Draw two acute angles and one obtuse angle without using a protractor. Estimate the measures of the angles. Measure them with the help of a protractor and see how much accurate is your estimate.

Look at Fig. 2.34. Mark a point

(a) A which is in the interior of both ∠1 and ∠2.

(b) B which is in the interior of only ∠1.

(c) Point C in the interior of ∠1.

Now, state whether points B and C lie in the interior of ∠2 also.