1. Factor & Solve: a. x 2 + 9x + 14 = 0 x = -7, -2 b. x 2 + 2x -15 = 0 x = -5, 3 c.
x 2 – 7x + 15 =45 x = 10, -3
2. √4 = _____
(this has 2 answers)
3.
√9 = _____
(this has 2 answers)
4.
√3 + √3 = _____
5. Use substitution to solve:
X = 1, y = 7 y = 3x + 4 and 3x + 2y = 17

♥Any four sided polygon is a quadrilateral.
♥We’ll study special quadrilaterals in this section:
♥Trapezoid
♥Trapezium
♥Parallelogram
♥Rhombus
♥Rectangle
♥Square
♥Kite

Properties of a TRAPEZIUM:
A quadrilateral with NO parallel sides.
A special Trapezium is a
KITE
♥ 2 pair of consecutive congruent sides
♥ Opposite sides are NOT congruent
♥ Diagonals are perpendicular
♥ Notice only ONE diagonal is bisected

♥ A trapezoid has one and only one pair of parallel sides.

♥ Opposite sides of a parallelogram are parallel
♥ Opposite sides are congruent
♥ Opposite angles of a parallelograms are congruent.
♥ Diagonals of a parallelogram bisect each other
♥ Consecutive angles of a parallelogram are supplementary supplementary

♥ A rhombus is a parallelogram (this means it has
ALL of the characteristics of a parallelogram)
In addition:
♥ A rhombus has four congruent sides
♥ The diagonals of a rhombus are perpendicular
♥ The diagonals bisect opposite angles

♥ A rectangle is a parallelogram (this means it has ALL the characteristics of a parallelogram)
IN ADDITION:
♥ Four right angles
♥ The diagonals of a rectangle are congruent and they bisect each other

♥ A square is a parallelogram, a rectangle, and a rhombus (It has ALL those characteristics!!!)
♥ Has four congruent sides
♥ Has four right angles
♥ The diagonals of a square :
♥ bisect each other
♥ are congruent
♥ are perpendicular .
♥ Bisect opposite angles

• Go to the back of the room and get worksheets 2-15A and 2-15B and a pair of scissors
• Your instructions are on 2-15B
• Have fun Ü
• Then complete 2-16