Download Isosceles Triangle

Chapter 4 Vocabulary Word Definition
Scalene Triangle – triangle with no equal sides.
Isosceles Triangle – a triangle with at least two equal sides.
Equilateral Triangle – a triangle with all three sides equal.
Equiangular Triangle – a triangle with all three angles congruent.
Acute Triangle – all angles of the triangle are acute.
Obtuse Triangle – a triangle with one obtuse angle.
Right Triangle – a triangle with one right angle.
Legs of an Isosceles triangle – the two congruent sides of an isosceles triangle.
Legs of a right triangle – the two sides of a right triangle that are perpendicular.
Base of a Isosceles triangle – the non congruent side of an isosceles triangle.
Base angles – the two angles of an isosceles triangles whose vertices are the
endpoints of the base.
Hypotenuse – the non perpendicular side of a right triangle.
Pythagorean Triple – three whole numbers that satisfy the Pythagorean Theorem.
Exterior Angle of a triangle – formed by a side and the extension of a side of a
triangle.
Congruent figures – two figures that have the same size and same shape.
Corresponding Parts – a pair of sides or angles that have the same relative
position in tow congruent or similar figures.
Flow proof – a type of proof that uses arrows to show the flow of a logical
argument
Transformation – an operation that moves or changes a geometric figure in some
way to produce a new figure.
Image – the new figure produced by a transformation.
Congruence Transformation – a transformation where the preimage and the
image are congruent