Mathematics - Geometry - Angles - Angle relationships (complementary, supplementary) - Angle Partners

Pairs of angle cards: (30°, 60°), (45°, 45°), (120°, 60°), (70°, 110°), (25°, 155°). Two bins: 'Add to 90°' and 'Add to 180°'. Student sorts pairs. Then reveal: pairs adding to 90° are COMPLEMENTARY, pairs adding to 180° are SUPPLEMENTARY. Memory trick: C (90) comes before S (180) in the alphabet, 9

Edodovivmagarwal
Mathematics - Geometry - Angles - Angle relationships (complementary, supplementary) - Angle Partners
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Mathematics - Geometry - Angles - Angle relationships (complementary, supplementary) - Angle Partners

vivmagarwal
vivmagarwalJan 29, 2026

Description

Pairs of angle cards: (30°, 60°), (45°, 45°), (120°, 60°), (70°, 110°), (25°, 155°). Two bins: 'Add to 90°' and 'Add to 180°'. Student sorts pairs. Then reveal: pairs adding to 90° are COMPLEMENTARY, pairs adding to 180° are SUPPLEMENTARY. Memory trick: C (90) comes before S (180) in the alphabet, 9

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MathematicsGeometry - AnglesClass 6, Stage 6, Class 6, MYP Grade 6, Grade 7

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