Geometry is the branch of mathematics that deals with figures like points, lines, angles, surfaces, and solids. It studies their properties and relationships. A point has no size, a line extends indefinitely, a ray has one endpoint and extends from it, a plane is a flat surface that goes on forever, an angle is formed by two rays from the same point, a triangle has three sides and three angles, a quadrilateral is a four-sided figure, and a circle is all points the same distance from the center. The document teaches the basic geometric concepts to students.

2. CLASS VI

3. What is
Geometry????!!!??
Geometry is the branch of
mathematics which deals with the
properties and relations of lines ,
angles , surfaces and solids. Just
as math's deals with numbers,
geometry deals with figures ,
points and lines…..

4. A point is usually represented by
a small dot and is name by a
single capital letter of
alphabet<see fig.1>.It has no
magnitude i.e. has no length,
breadth or thickness.
Fig.1

5. A line is straight and extends
indefinitely on both sides<see
fig.1>.
Fig.1
Line-
Line segment- A part of a line is called a
line segment.<see fig.2>.
Fig.2
A B

6. A ray is a part of a
line, which has one
end point, and
extends indefinitely
on the other
side<see fig.1>
A

7. A plane is a flat surface that
extends indefinitely in all
directions. The surface of the
wall is an example of a
plane.<see fig.1>.
Fig.1

8. An angle is formed by two
rays starting from the
same initial point. The
initial point O is called the
vertex. Rays OA and OB
are called the arms of the
angle.
O
A
B

9. A
C
B
A triangle is a three sided
closed figure, formed by
three line segments
intersect in pairs. A,B and
C are known as the
vertices (singular vertices)
of the triangle. A triangle
has:-
1.Three sides AB,BC and CA.
2.Three angles <A,<B and
<C.
3.Three vertices A, B & C
INTERIOR
EXTERIOR
NO
D
ALTITUDE

10. A quadrilateral is a four sided figure. ’
Quadri ’ means four, and ‘ lateral ‘
means sides. If A,B,C and D are four
points in a plane such that no three of
them are collinear and the line
segments AB,BC,CD and DA do not
intersect except at their end-points,
then the figure formed by these four
line segments is called the quadrilateral
ABCD.A D
B C
ADJACENT SIDES
BC & AD are
opposite sides.

11. .
o
A circles a set of points
on a plane which are at
the same distance from
a fixed point called
centre (O).
BA
OB=RADIUS
AB=DIAMETER< 2 X RADIUS >
INTERIOR
EXTERIOR
CHORD
C D
E
CED is the minor arc and CSD is
The major arc.
S

12. LEARNING OUTCOMES
Students will be able to
*understand the concept of a
point, line, line-segment, ray,
plane, angle, triangle,
quadrilateral, circle.
*apply the knowledge in different
situations.