1. Midsegments of a Triangle

2. Lesson 7: QUADRILATERALS
All Quadrilateral have 4 sides and the sum of the measures of the angles is 360°
Lesson 7: QUADRILATERALS
5.7.1: Parallelograms (Parallelogram, Square, Rectangle, Rhombus)
5.7.2: Special Quadrilaterals (Trapezoid, Kite)

3. PARALLELOGRAMS A quadrilateral is a parallelogram if:
Opposite sides are parallel
Opposite sides are congruent
Opposite angles are congruent
Consecutive angles are supplementary
The diagonal forms two congruent triangles
Diagonals bisect each other

4. RECTANGLES A rectangle is a parallelogram: Opposite sides parallel
Opposite sides congruent
All 4 angles are right angles
Diagonals bisect each other
Diagonals are congruent

5. SQUARES A square is a parallelogram: All sides congruent
All right angles
Opposite sides parallel
Congruent diagonals
Diagonals bisect each other
Diagonals bisect opposite angles
Diagonals are perpendicular

6. RHOMBUSES A rhombus is a parallelogram: 4 congruent sides
Opposite sides parallel
Consecutive angles are supplementary
Diagonals bisect each other
Diagonals bisect opposite angles
Diagonals are perpendicular

7. TRAPEZOIDS A trapezoid: NOT a parallelogram
1 set of opposite sides are parallel
Parallel sides are called bases, nonparallel sides are called legs
The midesegment is the average of the two parallel sides

8. ISOSCELES TRAPEZOIDS An isosceles trapezoid: NOT a parallelogram
Bases are parallel
Legs are congruent
Base angles are congruent
Diagonals are congruent
The midsegment is the average of the two parallel sides

9. KITES A kite: NOT a parallelogram
2 pairs of congruent sides that are adjacent
The angles between the 2 noncongruent sides are congruent
Diagonals are pependicular
One of the diagonals is beisected