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
The Pythagorean Theorem
The Pythagorean Theorem
The converse of the theorem
The converse of the theorem
The converse says→if, in a triangle, c2 = a2 + b2, where c is the longest side, then the triangle is right-angled, and the angle opposite c is a right angle. For example, the triangle with sides 7, 24 and 25 is right-angled, because 72 + 242 = 49 + 576 = 625 = 252.
The Pythagorean Theorem · 2 / 6