How are polygons classified?
By the number of sides they have.
What is a triangle?
It is a polygon with three sides and three angles.
What are the three types of triangles?
Equilateral, isosceles, and scalene.
How can triangles be classified based on angle measure?
Acute, obtuse, and right triangles.
What are quadrilaterals?
They are polygons with four sides.
What are the criteria to determine if a quadrilateral is a parallelogram?
Opposite sides congruent, opposite angles congruent, or diagonals intersecting at their midpoint.
What are some examples of parallelograms?
Rectangle, rhombus, and square.
What are trapezoids?
They are quadrilaterals with two parallel sides called bases.
What are the types of trapezoids?
Isosceles trapezoid and right trapezoid.