7.5 - proving kite, trapezoid, isosceles trapezoid 2018 ... · chapter 7 test thursday 2/8 •4...
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7.5 Proving Kite, Trapezoid, Isosceles Trapezoid 2018.notebook
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February 04, 2018
Mental Floss: Thur, Feb 1st
Determine whether quadrilateral WXYZ is a parallelogram, rhombus, rectangle, or square.
7.5 More Special Quadrilaterals
Trapezoid = Quadrilateral with exactly one pair of opposite sides parallel.
• The parallel sides are called the bases
• The other sides (nonparallel) are called the legs
• If the legs are congruent, then the trapezoid is an Isosceles Trapezoid.
Example #1
1. Each pair of base angles is congruent.
2. Diagonals are congruent.
Example #2
7.5 Proving Kite, Trapezoid, Isosceles Trapezoid 2018.notebook
2
February 04, 2018
7.5 More Special Quadrilaterals
Kite = Quadrilateral with two pairs of consecutive sides congruent, but opposite sides are not congruent.
• Diagonals are perpendicular to each other
• Exactly one pair of opposite angles congruent
Chapter 7 Test Thursday 2/8• 4 polygon formulas
• Names of polygons
• Properties of parallelograms
• Properties of rhombuses and rectangles
• Properties of trapezoids and kites
• Naming specific quadrilaterals in coordinate plane using – Parallel sides (same slopes)– Perpendicular sides and diagonals (opposite reciprocal slopes)– Congruent sides (distance formula)