Q57 of 78 Page 23

What is common in the following figures (i) and (ii) (Fig. 2.36.)?

Is Fig. 2.36 (i) that of triangle? if not, why?

Both the figures have three lines segments.

Figure (i) is not a triangle because it is not a closed figure.

Find out the incorrect statement, if any, in the following:

An angle is formed when we have

(a) two rays with a common end-point

(b) two line segments with a common end-point

In which of the following figures (Fig. 2.35),

(a) perpendicular bisector is shown?

(b) bisector is shown?

(d) only perpendicular is shown?

If two rays intersect, will their point of intersection be the vertex ofan angle of which the rays are the two sides?

In Fig. 2.37,

(a) name any four angles that appear to be acute angles.

(b) name any two angles that appear to be obtuse angles.

What is common in the following figures (i) and (ii) (Fig. 2.36.)?Is Fig. 2.36 (i) that of triangle? if not, why?