Angles And Triangles Flashcards
What is an acute triangle?
A triangle with angles less than 90 degrees. (acute)
What is an obtuse triangle?
A triangle with angles more than 90 degrees. (obtuse)
What is a right triangle?
A triangle with a 90 degree angle.
What is an equiangular triangle?
A triangle with three congruent angles.
What is a scalene triangle?
A triangle with no congruent sides.
What is an isosceles triangle?
A triangle with at least two congruent sides.
What is an equilateral triangle?
A triangle with three congruent sides.
What is a complementary angle?
When the sum of two angles is 90 degrees.
What is a supplementary angle?
When the sum of two angles is 180 degrees.
What are adjacent angles?
Two angles that share a “fence” or line.
What are vertical angles?
Two angles that are on opposite sides of an intersect and are congruent.
What does congruent mean?
The angles or sides have the same measure.
The angles of a triangle only sometimes add up to 180 degrees… TRUE or FALSE
FALSE… The angles of a triangle always equal 180 degrees.
