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 Isosceles Triangle
The Isosceles Triangle
Definition and parts of an isosceles triangle
Definition and parts of an isosceles triangle
- An isosceles triangle is a triangle with two sides of equal length, called the legs.
- The third side is called the base.
- The angle between the two legs is the vertex angle, and the two angles at the ends of the base are the base angles.
The Isosceles Triangle · 1 / 5