The number of line segments in is 

A line is denoted as

In this Figure, which is not the correct way of naming an angle?

In this Figure, ∠AYZ = 45°. If point ‘A’ is shifted to point ‘B’ along the ray, then the measure of ∠BYZ is ___________
.

A point of concurrency in the figure is _________.

A line through two end points ‘A’ and ‘B’ is denoted by ____________.

A ray has ____________ end point(s).

Observe the diagram and fill in the blanks.
‘A’, ‘O’ and ‘C’ are _________ points.

Observe the diagram and fill in the blanks.
 _________ is the point of concurrency.

(i) 'A' , 'O' and 'B' are______________ points
(ii) 'A', 'O' and 'C' are ____________ points
(iii) 'A' 'B' and, 'C' are_________ points
(iv) _________ is the point of concurrency

20° and 70° are complementary.

88° and 12° are complementary.

80° and 180° are supplementary.

0° and 180° are supplementary.

How many line segments are there in the given line? Name them.

Draw and label each of the angles.
(i) \(\angle \mathrm{NAS}=90^{\circ}\)
(ii) \(\angle \mathrm{BIG}=35^{\circ}\)
(iii)\(\angle \mathrm{SMC}=145^{\circ}\)
(iv) \(\angle \mathrm{ABC}=180^{\circ}\)

Identify the types of angles shown by the hands of the given clock.
(i)

(ii)

(iii)

(iv) 

(v)

Draw any line and mark any 3 points that are collinear.

Draw any 3 lines to have a point of concurrency.

Find the complementary angle of  90º

Find the supplementary angle of  90º

Construct a line segment using ruler and compass AB = 7.5 cm

From the given figure, name the
(i) parallel lines
(ii) intersecting lines
(iii) points of intersection.

Draw the following angles using the protractor.
65º

Draw the following angles using the protractor.
38º

From the given figure, name
(i) all pairs of parallel lines.
(ii) all pairs of intersecting lines.
(iii) pair of lines whose point of intersection is ‘V’.
(iv) point of intersection of the lines ‘ l₂’ and ‘l₃’.
(v) point of intersection of the lines ‘l₁’ and ‘l₅’.

Name the angle in each figure given below in all the possible ways.