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Questions and Answers
What is the name of the two equal sides in an isosceles triangle?
What is the name of the two equal sides in an isosceles triangle?
- Legs (correct)
- Base
- Hypotenuse
- Perimeter
What did Euclid define as an isosceles triangle?
What did Euclid define as an isosceles triangle?
- A triangle with no equal sides
- A triangle with at least two equal sides
- A triangle with all sides equal
- A triangle with exactly two equal sides (correct)
What is the axis of symmetry in an isosceles triangle?
What is the axis of symmetry in an isosceles triangle?
- Angle bisector
- Median
- Perpendicular bisector of its base (correct)
- Altitude
What are the two angles opposite the legs in an isosceles triangle?
What are the two angles opposite the legs in an isosceles triangle?
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What is the mathematical study of isosceles triangles traced back to?
What is the mathematical study of isosceles triangles traced back to?
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Study Notes
Isosceles Triangle Properties
- The two equal sides in an isosceles triangle are called legs.
- Euclid defined an isosceles triangle as a triangle with two equal sides.
- The axis of symmetry in an isosceles triangle is the perpendicular bisector of its base.
- The two angles opposite the legs in an isosceles triangle are equal.
- The mathematical study of isosceles triangles is traced back to ancient Greek mathematicians, particularly Euclid.
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