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22 Cards in this Set

  • Front
  • Back
equilateral triangle
A triangle with all sides congruent.
isosceles triangle
A triangle with at least two sides congruent.
scalene triangle
A triangle with no sides congruent.
acute triangle
A triangle with tree acute angles.
equiangular triangle
A triangle with all angles congruent.
right triangle
A triangle with one right angle.
obtuse triangle
A triangle with one obtuse angle.
vertex of a triangle
each of the three points joining the sides of a triangle
adjacent sides of a triangle
two sides of a triangle with a common vertex
legs of a right triangle
in a right triangle, the sides the form the right angle
In a right triangle the side opposite the right angle. The other two sides are called legs.
legs of an isosceles triangle
The two congruent sides. The third side is the base.
base of an isosceles triangle
the non-congruent side of an isosceles triangle that had only two congruent sides
interior angle
the angles inside the shape
exterior angle
the angles outside the shape
A statement that can be proved easily by applying the theorem.
there is a correspondence between their angles and sides
corresponding angles
Two angles in corresponding positions relative to two lines.
corresponding sides
congruent sides
base angles
the two angles adjacent to the base
vertex angle
the angle opposite the base
coordinate proof
a type of proof that involves placing geometric figures in a coordinate planes