### Mathematics Class VI

Knowing Our Numbers
Whole Numbers
Playing With Numbers
Basic Geometrical Ideas
Fractions
Integers
Decimals
Data Handling
Mensuration
Algebra
Ratio and Proportion
Practical Geometry
Symmetry

# Geometry – Class VI

Geometry tells us about the lines, angles, shapes and practical geometry is about the construction of these shapes

Tools to be used for construction

1. The Ruler: – A ruler is a straight edge which we something call a scale. It is used to draw a line-segment and also to measure them.
2. The Compass: – The compass has two ends-one is pointer and other is for the pencil. It is used to draw arcs and circles and also them to measure the line-segment.
3. The Divider: – It is a pair of pointers on both the ends. It is used to compare the length of line and arcs.
4. Set-Squares: – It is set of two triangular pieces: –
• One is having and angles at the corners. It is used to draw parallel and perpendicular lines.
• Another is having and at the corners. It is also used to draw parallel and perpendicular lines.

The Protector: – It is a semi-circle device which is divided into parts. It starts from the from the right-hand side and ends with the on the left-hand side. It is used to measure and draw angles.

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