This worksheet focuses on using the sum of angles in a quadrilateral to find missing angles. It assumes that students are already familiar with angles in triangles, on a straight line, vertically opposite angles, and angles in parallel lines.
The first section covers different types of quadrilaterals and their properties. There is a short exercise where students practise choosing the correct type(s) of quadrilateral based on the information given.
The second section begins with the result for the sum of angles in a quadrilateral. There are then some examples of finding angles - these are to be completed with your class. The exercise that follows is for students to attempt themselves.
Answers to both exercises are included.
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Really 3 worksheets in one: 1) properties of quadrilaterals; 2) missing angles in quadrilaterals including using the properties of particular types of quadrilaterals; 3) forming and solving equations using the angles in quadrilaterals.
Excellent to use with both quadrilaterals lesson or with angle sum.
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