PDF-Math 1312 Section 4.1 Parallelograms Definition: A parallelogram is a

Corollary 1 The opposite angles of a parallelogram are congruent Corollary 2 The opposite sides of a parallelogram are congruent Corollary 3 The diagonals of a parallelogram bisect each othe. The parallel sides are parallel by definition 2 The opposite sides are congruent 3 The opposite angles are congruent 4 The diagonals bisect each other 5 Any pair of consecutive angles are supplementary Properties of Rectangles In a rectangle 1 All t Section 8.5. Goal. Find the area of parallelograms.. Key Vocabulary. Base of a parallelogram. Height of a parallelogram. Parallelogram. Rhombus . Parallelogram. A parallelogram is a quadrilateral where the opposite sides are congruent and parallel.. The area of a parallelogram is base x height.. 8cm. 5. cm. Area = 8 x 5 = 40cm. 2. Here’s why:. A parallelogram can be split up into a rectangle and 2 triangles – each with the same area.. 10cm. Sara . Beberman. Olivia . DeFlumeri. Olivia Huynh. Amanda . Okaka. Parallelogram. A parallelogram is a quadrilateral with both pairs of opposite sides parallel. - if a quadrilateral has two pairs of opposite sides congruent then it is a parallelogram ex: (AB. This slide show was written by . Michael . Braverman. Trenton, NJ. March 2015. Area: Formulas and Derivations. All area formulas are based on the formula of a rectangle: . Area of a rectangle = base x height.. for . Sem. 1 Quiz 5. If the doorbell rings, then the dog will bark.. What conclusion can you draw?. The doorbell rings.. The dog barks.. 2x + 3(90 – x) = 220. The sum of twice an angle and 3 times its complement is 220. Find the measure of the angle’s supplement.. “…geometric shapes are the alphabet in which the book of nature is written." -Galileo. You are learning to classify quadrilaterals.. Objectives. Point. -. A place in time or space. Line. - . a series of points that extends forever. 1 23 Ecologically and economically worthwileHoeing 45 Why is hoeing important? Maintenance of soil avoid erosions for improved uptake of water improve mineralization improve growth of roots by loose 6.2: Properties of Parallelograms . If Statements . (AKA Conditional Statements). Recall…. Theorem . 6.2: . The sum of the measures of the exterior angles of any polygon is 360. If and Only If statements. Holt McDougal Geometry. Warm Up. Lesson Presentation. Lesson Quiz. 25.3. Warm Up. Solve for . x. .. ABCD . is a parallelogram. Find each measure.. 1.. . CD. . 2. . m. . C. . 14. 104°. 25.3. Review Quiz . #10. Proving Theorems about . Parallelograms. Question 1. Determine whether these four vertices form a parallelogram: . A . (–3, 0), . B . (6, 0), . C . (1, 1), . D . (–2, –2).. No, because both pairs of opposite sides are not parallel.. Client: Pine School District. Design team. : Jennifer Barrall, Nancy Dell, Melanie . Staw. Development team: . Michael . Darrison. and Jenny Anderson. Review and Revision Log. Date. Reviewer. Comments and Notes. By,. Michael . Thiel. and Lauren . Larar. . . What Family?. First, you must identify what family the quadrilateral falls under.. Parallelogram. , . Trapezoid. ,. . quadrilateral.. Proving that a quadrilateral is a Rectangle. Parabola in Parallelogram. The coordinates of two points on the parallelogram, . and . , are shown on the diagram. Also shown is the . -coordinate of the minimum point.. The upper dashed line extends the chord .