Angles in Triangles iGCSE REVISION WORKSHEET

Cambridge iGCSE (0580): C4.6

Edexcel iGCSE (4MA1): 4.1

Number of Questions: 14

Estimated time to complete: 15-30 minutes

About This Worksheet

This iGCSE revision worksheet covers Angles in Triangles, aligned to Cambridge iGCSE (0580) syllabus code C4.6 and Edexcel iGCSE (4MA1) code 4.1. Answers and worked solutions are included.

Get plenty of practice calculating missing angles in triangles with this resource. Questions will take students through calculating one missing angle in a triangle, working with isosceles triangles and working with multiple rules in multi-step problems. Some questions require students to provide reasons for their working for the perfect GCSE revision.

All worksheets are created by the team of experienced teachers at Cazoom Maths.

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iGCSE Syllabus Alignment

Cambridge iGCSE Maths (0580)

C4.6Core

Calculate unknown angles using: angles at a point, angles on a straight line, vertically opposite angles, angle sum of triangle and quadrilateral, angles in parallel lines (corresponding, alternate, co-interior). Know and use angle properties of regular polygons

Geometry

Edexcel iGCSE Maths (4MA1)

4.1All tiers

Distinguish between acute, obtuse, reflex and right angles. Use angle properties of intersecting lines, angles at a point, vertically opposite angles, alternate angles, corresponding angles and allied (co-interior) angles. Understand the exterior angle of a triangle property and the angle sum of a triangle. Use the properties of isosceles, equilateral and right-angled triangles.

Geometry and Trigonometry