Category Archives: Unit 3 Geometry and Algebra

Triangles, Polygons and Constructions

Inte­rior and Exte­rior Angles of a Tri­an­gle First a cou­ple of rules using this tri­an­gle:- Rule 1 — The sum of the angles of a tri­an­gle (x + y + z) equals 180° Rule 2 — The exte­rior angle (angle … Con­tinue read­ing

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Angles, Parallel Lines and Bearings

  Angles In Par­al­lel Lines We use arrow­heads to indi­cate that 2 lines are par­al­lel:-           When a line crosses 2 par­al­lel lines it cre­ates pairs of equal angles Inte­rior Angles In the dia­gram below x and … Con­tinue read­ing

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