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Encapsulate
math
geOmetry

Simple Geometrical Concepts Plane Shapes Solid Shapes

Point Line Cube Cuboid
P Q Face Face
• • triangle rectangle
Edge
• R A Vertex A Vertex D Edge Corner
types of line Side Corner
Cylinder Cone
Straight Lines B C B Side C
Curved Lines Plane face Vertex
Horizontal Vertical Slanting Curved face Curved face
Square Circle
A D Edge Plane Edge
Side face
Vertex Centre Sphere Hemisphere
O Edge Plane face
ray Line Segment B C
Y
A B
X Curved face
Line segment XY
XY Plane and Curved Surface
Views
• Some objects
diagonals have only the
plane surface.
A A A D D D P P P S S S Front view Side view Top view • Some objects
have only
the curved
Tangram surface.
B B Rectangle Rectangle C Q Q Square Q R R R
C C
B
Rectangle
Square
Square
The diagonals AC and BD of a
The diagonals PR and QS of a square
The diagonals AC and BD of a
The diagonals AC and BD of a The diagonals PR and QS of a squar e 7-pieces Tangram • Some objects
The diagonals PR and QS of a square
are equal in length.
rectangle are equal in length.
th
e equal in leng
.
are equal in length.
rectangle ar rectangle are equal in length. are equal in length. 3 4 have both
6 the plane
5 2
7 and curved
1 surface.
Mental Maths
1. What is the difference between a ray and a line segment?
2. How many rectangles are there in the adjacent figure?
3. Name the solid that has no edge?

4. How many triangles are there in the adjacent figure?

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