GREAT MINDS THINK ALIKE!
An angle that measures exactly 90 degrees.
Ex. Chalk Board
Measures exactly 180 degrees
Ex. The ground
TYPES OF TRIANGLES
There are 3 acute angles in this triangle.
There is 1 right angle in this triangle.
There are 1 obtuse angle and 2 acute angles in this triangle.
There are NO congruent and NO angles are congruent in this triangle.
There are 2 congruent sides and 2 congruent angles.
There are 3 congruent sides and 3 congruent angles.
Learn More About Triangles
What is a quadrilateral you might ask, a quadrilateral is a 4 sided polygon and the sum of all the angles are 360 degrees.
A rectangle is a quadrilateral and all the sides are right angles = 90 degrees. The opposite sides are both congruent and parallel.
A rhombus is a quadrilateral and the opposite angles are congruent. The opposite sides are both parallel and congruent.