All about Triangles Ask Boffin!.

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Presentation transcript:

All about Triangles Ask Boffin!

An Equilateral Triangle

How many lines of symmetry has an Equilateral Triangle got? 1 2 3

Properties of an Equilateral Triangle Has 3 equal sides Has 3 equal angles Each angle is a 60o angle Has 3 lines of symmetry Is a regular shape

What type of triangle is this?

An Isosceles Triangle

How many lines of symmetry has an Isosceles Triangle got? 1

Properties of an Isosceles Triangle Has 2 equal sides Has 2 equal angles Has 1 line of symmetry Is an irregular shape

What type of triangle is this?

A Scalene Triangle

How many lines of symmetry has a Scalene Triangle got? None!

Properties of an Scalene Triangle Has NO equal sides Has NO equal angles Has NO lines of symmetry Is an irregular shape

What type of triangle is this?

A Right Angled Triangle

A Right Angled Triangle is different It may be scalene or it may be isosceles But it always has a right angle!

Properties of a Right Angled Triangle Has 1 right angle May be an isosceles triangle May have 1 line of symmetry Is an irregular shape It will be isosceles and have 1 line of symmetry when these 2 sides are equal.

Triangles Shapes with 3 sides!