The number of line segments in is 

(a)

1

(b)

2

(c)

3

(d)

4

A line is denoted as

(a)

AB

(b)

\(\overrightarrow { AB } \)

(c)

 \(\overleftrightarrow { AB } \)

(d)

\(\overline{\mathrm{AB}}\)

A set of collinear points in the figure are _________.

(a)

A, B, C

(b)

A, F, C 

(c)

B, C, D

(d)

A, C, D

A set of non-collinear points in the figure are _________.

(a)

A, F, C 

(b)

B, F, D

(c)

 E, F, G 

(d)

A, D, C

A point of concurrency in the figure is _________.

(a)

E

(b)

F

(c)

G

(d)

H

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

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\(\overleftrightarrow { AB } \)

A line segment from point ‘B’ to point ‘A’ is denoted by ____________.

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\(\overline { BA } \)

A ray has ____________ end point(s).

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One

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

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Non-Collinear 

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

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O

Draw any 3 lines to have a point of concurrency.

Draw any 3 lines that are not concurrent. Find the number of points of intersection.

Find the type of lines marked in thick lines (Parallel, intersecting or perpendicular).

Measure the angles of the given figures using protractor and identify the type of angle as acute, obtuse, right or straight

Measure the angles of the given figures using protractor and identify the type of angle as acute, obtuse, right or straight

Draw the following angles using the protractor.
90º

Find the complementary angle of  26º

Find the complementary angle of  90º

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

Think and write an object having
i) Parallel lines (1) __________ (2) __________ (3) __________
ii) Perpendicular lines (1) __________ (2) __________ (3) __________
iii) Intersecting lines (1) __________ (2) __________ (3) __________

Pick out the Obtuse angles from the given figures.

Find the parallel and intersecting line segments in the picture given below.

From the figures given below, classify the following pairs of angles into complementary and non complementary