Key Stage 3 Maths - Lesson Objectives, Keywords and Resources - Year 8 - Shape, Space and Measures

Geometric proof

Lesson Objectives

To be able to show that:

• The sum of the angles of a triangle is 180° and of a quadrilateral is 360°
• The exterior angle of a triangle is equal to the sum of the two interior opposite angles.

Keywords:

triangle, quadrilateral, demonstrate, prove

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