Presentation on theme: "6.7 Polygons in the Coordinate Plane"— Presentation transcript:
1 6.7 Polygons in the Coordinate Plane Formulas and the coordinate planeDistance formulaTo determine whether sides are congruent.To determine if diagonals are congruent.Midpoint formulaTo determine the coordinates of the midpoint of a side.To determine whether diagonals bisect each other.Slope formulaTo determine whether opposite sides are parallel.To determine whether diagonals are perpendicular.To determine whether sides are perpendicular.
2 Classifying a Triangle Is triangle ABC scalene, isosceles, or equilateral.
3 Classifying a Triangle ABC is an isosceles triangle.
4 Classifying a Parallelogram Is parallelogram ABCD a rhombus? Explain.Since the slopes are not opposite reciprocals, the diagonals are not perpendicular. Therefore, ABCD is not a rhombus.
5 Classifying a Quadrilateral A kite is shown. What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the kite?
6 Opposite sides are congruent Opposite sides are congruent. Sides are vertical and horizontal, making them perpendicular. Therefore, ABCD is a rectangle.
7 More Practice!!!!!Homework – Textbook p. 403 #5 – 16 ALL.