Curriculum
Mathematics — Second Preparatory
Unit 1: Real Numbers
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Unit 2: Algebra
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Unit 3: Geometry
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Congruence
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Congruence — Lesson quiz
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The Pythagorean Theorem
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The Pythagorean Theorem — Lesson quiz
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Applications of Parallelism
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Applications of Parallelism — Lesson quiz
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Medians of a Triangle
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Medians of a Triangle — Lesson quiz
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The Isosceles Triangle
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The Isosceles Triangle — Lesson quiz
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Interior and Exterior Angles of a Polygon
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Interior and Exterior Angles of a Polygon — Lesson quiz
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Unit 4: Statistics
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Text lesson
Applications of Parallelism
Applications of Parallelism
Conditions for parallel lines
Conditions for parallel lines
- The converse of these relations gives the conditions for two lines to be parallel:
- If a pair of corresponding angles or a pair of alternate angles are equal, the lines are parallel.
- If the two co-interior angles add up to 180°, the lines are parallel.
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