Geometry basics

OpenStax

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Points, lines and angles

2 Points and lines

4 Measuring angles

5 Using a protractor

6 Measuring angles : use a protractor to measure the following angles:

7 Special angles

8 Angles larger than 360 ∘

9 Special angle pairs

10 Parallel lines intersected by transversal lines

3 Properties of triangles

4 Investigation : sum of the angles in a triangle

5 Congruent triangles

6 Similar triangles

7 The theorem of pythagoras

9 Quadrilaterals

10 Other polygons

11 Angles of regular polygons

14 Challenge problem

Source: OpenStax, Siyavula textbooks: grade 10 maths [caps]. OpenStax CNX. Aug 03, 2011 Download for free at http://cnx.org/content/col11306/1.4

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