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Name: ___________________________ Geometry NR: Assignment 6-9 Label: Parallelogram, Polygon, Quadrilateral, Rectangle, Rhombus, Square, Trapezoid, Isosceles Trapezoid Fill in the blank: Rectangle, Rhombus, Square, Trapezoid 1. A ________________________ is a parallelogram with four congruent sides. 2. A ________________________ is a parallelogram with one right angle. 3. A ________________________ is a rectangle with four congruent sides. 4. A ________________________ is a quadrilateral with exactly one pair of opposite sides parallel. 5. In the accompanying diagram of parallelogram ABCD, AB is extended to E such that CB CE . If mADC = 100, what is mCEB? D C A B E Practice and Review 6. ∠J and ∠M are base angles of isosceles trapezoid JKLM. If m∠J = 21x + 4, m∠K = 12x – 8, and ∠M = 14x + 10, find the value of x. 7. Given the following information, if RSTU is isosceles, find the measures of the missing angles. R S 35 x y T U x= y= 8. How many sides does a polygon have if the sum of the interior angles is 2340? 9. Find the sum of the measures of the interior angles of a hexagon.