4.1 Angles, lines and triangles
- Syllabus
- 2017
- Topic
- 4.1
- Level
- Foundation
4.1.A Distinguish between acute, obtuse, reflex and right
distinguish between acute, obtuse, reflex and right angles
4.1.B Angle properties of intersecting lines, parallel lines
use angle properties of intersecting lines, parallel lines and angles on a straight line Angles at a point, vertically opposite angles, alternate angles, corresponding angles, allied angles
4.1.C The exterior angle of a triangle property and the angle
understand the exterior angle of a triangle property and the angle sum of a triangle property
4.1.D The terms ‘isosceles’, ‘equilateral’ and ‘right-angled
understand the terms ‘isosceles’, ‘equilateral’ and ‘right-angled triangles’ and the angle properties of these triangles
Objective notes
4 learning objectivesConceptIGCSE Math A Foundation