Bellringer
• Find the distance between the points to the
nearest tenth.
1. M(2, -5), N(-7, 1)
• Find the slope of the lines
2. X(0,6), Y(4,9)
6-1 Classifying Quadrilaterals
Quadrilaterals
• A polygon with four sides
Definitions!
• Parallelogram: a quad with both pairs of opposite sides
parallel
• Rhombus: a parallelogram with four congruent sides
• Rectangle: a parallelogram with 4 right angles
• Square: a parallelogram with 4 congruent sides and 4
right angles
• Kite: a quad with two pairs of adjacent sides congruent
and no opposite sides congruent
• Trapezoid: a quad with exactly one pair of parallel lines
• Isosceles Trapezoid: a trapezoid whose nonparallel
opposite sides are congruent
Which is which?!?!
• Try and match the definition to the picture.
Rectangle
Square
Isosceles Trapezoid
Rhombus
Which is which?!?!
• Try and match the definition to the picture.
Parallelogram
Kite
Trapezoid
Quadrilateral
Parallelogram
Rectangle
Step 1: Find the slope of each side.
Step 2: Use the distance formula to see if any pairs of sides are congruent.
Practice
• Pg. 290-291 #1-26