Warm-Up

1
Warm-Up

• ABCD is a parallelogram.
• Find the length of BC.

3x 11
B
C
A
D
5x 3
2
Geometry 6-4 and 6-6

• Rectangles, Rhombi, Squares, Kites, and Trapezoids

3
Quadrilateral

• 4-sided figure

4
Parallelogram

• Opposite sides parallel
• Opposite sides congruent
• Opposite angles congruent
• Consecutive angles supplementary
• Diagonals bisect

5
Rectangle

• 4 right angles
• Diagonals are congruent

6
Rhombus

• 4 congruent sides
• Diagonals are perpendicular
• Diagonals bisect opposite angles

7
Square

• 4 right angles
• 4 congruent sides
• Everything a rectangle and rhombus have

8
Kite

• Two pairs of congruent consecutive sides
• Diagonals are perpendicular
• Middle pair of opposite angles are congruent

9
Trapezoid

• Only one pair of parallel sides (called bases)
• Non-parallel sides are called legs
• Base angles share a common base

10
Isosceles Trapezoid

• Legs are congruent
• Each pair of base angles are congruent
• Diagonals are congruent

11
kite
parallelogram
trapezoid
rhombus
rectangle
square
isosceles trapezoid