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Presentation transcript:

Copy this into your SOL Binder (day 49)

If your are interested…..

Foldable Time……Rectangles, Rhombi, Squares, Trapezoids and Isosceles Trapezoids Practice: Rectangles, Rhombi & Squares

A rectangle is a quadrilateral with 4 right angles. Thm : If a parallelogram is a rectangle, then the diagonals are congruent. Properties of a Rectangle: 1. Opposite sides are ≅ and || 2. Opposite ∠ s are ≅ 3. Consecutive ∠s are supplementary 4. Diagonals are ≅ and bisect each other 5. All four ∠s are right ∠ s

Th : If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle.

A rhombus is a quadrilateral with all 4 sides congruent. Thm : The diagonals of a rhombus are perpendicular. Thm: The converse is also true: If the diagonals of a parallelogram are perpendicular, then the parallelogram is a rhombus. If BD ⊥AC, then □ABCD is a rhombus.

Thm: Each diagonal of a rhombus bisects a pair of opposite angles. If a quadrilateral is both a rhombus and a rectangle, it is a square. A square is a quadrilateral with four right angles and four congruent sides.

Match the Answer with the question. 1. Find the distance from A to B for A is –3 and B is 9? 2. Find the midpoint of DC for D is (3,4) and C is (-2,4)? 3. Find the distance from E to F for E is (7,-1) and F is (10,3)? 4. If H is between GI and GH is 9 and GI is 25, what is the length of HI? 5. If you add segments MN + NP + PR, what is the name of the resulting segment? Answers: 5 or square root of 25, 12, MR, (0.5, 4), 16