9-3 Classifying Polygons – We learned that a polygon is a closed plane figure with at least 3 sides. Then we learned how to classify triangles and quadrilaterals. First, we learned to classify triangles based on the measure of their angles. If the angles are less than 90° then the triangle is an acute triangle. If the angle is equal to 90° it is a right triangle. If the angle is greater than 90° it is an obtuse triangle. Then we learned to classify triangles based on the length of their sides. If the sides are all congruent is an equilateral triangle. If 2 sides are congruent it is an isosceles triangle. If no sides are congruent then it is a scalene triangle.
Assignment: Complete problems from 9-3 in workbook