Page 135 - Math Genius C3

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Mind Map
math Creative Thinking
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 (vertex)
Corner
types of Lines Side (vertex)
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
face
Side
Vertex Centre Sphere Hemisphere
O
Edge Plane face
ray Line Segment B C
A B Y
X Curved face

Plane and Curved Surface
Views
• Some objects
Diagonals have only
plane surfaces.
A A A D D D P P P S S S Front view Side view Top view • Some objects
have only
curved
tangram surfaces.
C C
B B Rectangle Rectangle C Q Q Square Q R R R
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 PR and QS of a squar e 7-pieces Tangram • Some objects
The diagonals AC and BD of a
The diagonals PR and QS of a square
rectangle are equal in length.
are equal in length.
th
.
e equal in leng
rectangle ar rectangle are equal in length. are equal in length. 3 4 have both
are equal in length.
6 plane and
5 2
7 curved
1 surfaces.
Mental Maths Logical Thinking
1. What is the difference between a ray and a line segment?
2. How many rectangles are there in this figure?
3. Name the solid that has no edge.

4. How many triangles are there in this figure?

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