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Chapter 8 & 7 Vocabulary

Chapter 8 & 7 Vocabulary. Presentations. SAMANTHA ALDRIDGE JONATHAN CARDENAS RICHARD CHASTAIN APRIL CHRIST DAVINA COX JESSE DAY THOMAS DELACRUZ ETIENNE MACKENDJO ARIEL FUTRELL AMANDA GAMEZ BIANEY GAMEZ MELISSA LOPEZ AYRIANNA MACRELLIS-JONES JOHN PARKER JOSEPH PRESSENDO

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Chapter 8 & 7 Vocabulary

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  1. Chapter 8 & 7 Vocabulary

  2. Presentations SAMANTHA ALDRIDGE JONATHAN CARDENAS RICHARD CHASTAIN APRIL CHRIST DAVINA COX JESSE DAY THOMAS DELACRUZ ETIENNE MACKENDJO ARIEL FUTRELL AMANDA GAMEZ BIANEY GAMEZ MELISSA LOPEZ AYRIANNA MACRELLIS-JONES JOHN PARKER JOSEPH PRESSENDO MARVIN REAVES DIANET REYES-GARCIA JESSIE SANCHEZ ZANDRA STRAPLE CAYLEN WOUTERS DANIEL ZAVALA-SARABIA TIERRA WILLIAMS

  3. Diagonal: (Page 404) A segment connecting any two nonconsecutive vertices. Interior angle sum theorem: (Page 404) In a convex polygon, the sum of the interior angles = 180(n – 2) For a pentagon: 180(5-2) = 180(3) = 540 degrees

  4. Why? Because 180 + 180 +180 = 540, as shown below. 3 2 4 1 5 Exterior angle sum theorem: (Page 406) In a convex polygon, the sum of the exterior angles = 360 degrees Why? Because 180(5)(sides) = 900/ 900 – 540 = 360

  5. Parallelogram: A four sided figure with parallel opposite sides (Page 411) Diagonals of parallelograms: Bisect each other (Page 413) Diagonals of parallelograms: Separate it into 2 congruent D’s (Page 414)

  6. Definition of parallelogram: (Page 418) • Both pairs of opposite sides are congruent • Both pairs of opposite angles are congruent • Both pairs of diagonals bisect each other • At least one pair of opposite sides are both parallel and congruent.

  7. Rectangle: (Page 424) A quadrilateral with 4 right angles and congruent diagonals.

  8. Rhombus: (Page 431) A Parallelogram with diagonals that are perpendicular

  9. Trapezoid: (Page 439) A quadrilateral having only one pair of parallel sides called base1 and base2. Isosceles Trapezoid: (Page 439) A quadrilateral having only one pair of parallel sides called base1 and base2, with congruent base angles and congruent diagonals.

  10. Median of a Trapezoid: (Page 440) A segment joining the midpoints of both congruent legs which is parallel to base1 and base2 and measures one-half the sum of both bases. 10 inches 11inches 12 inches

  11. Chapter 8 & 7 Vocabulary Pythagorean Theorem: a2 + b2 = c2 (Page 350) Pythagorean Triple: Three numbers satisfying the equationa2 + b2 = c2 45-45-90 SRT: The hypotenuse is radical 2 times the length of the other two equal sides. 30-60-90 SRT: The hypotenuse is 2 times the length of the short leg while the long leg is radical 3 times the length of the short leg. 60 45 30 45

  12. Chapter 8 & 7 Vocabulary 3-4-5 SRT: (Explain how this works) 5-12-13 SRT: (Explain how this works) 13 5 3 5 12 4

  13. 45-45-90 Ghost Demo: 20 feet 16 feet 45 45 18 feet

  14. 3-4-5 Ghost Demo: 20 feet 13 feet 16 feet 16 feet

  15. 5-12-13 Ghost Demo: 20 feet 11 feet 16 feet 8 feet

  16. 30-60-90 Ghost Demo: 20 feet 16 feet 60 30 15 feet

  17. Convex Polygon: A polygon wherein no points contained in any lines drawn from anyof it’s sides may be found in it’s interior (CONVEX) (This polygon is concave.)

  18. STOP

  19. Presentations SAMANTHA ALDRIDGE JONATHAN CARDENAS RICHARD CHASTAIN APRIL CHRIST DAVINA COX JESSE DAY THOMAS DELACRUZ ETIENNE MACKENDJO ARIEL FUTRELL AMANDA GAMEZ BIANEY GAMEZ MELISSA LOPEZ AYRIANNA MACRELLIS-JONES JOHN PARKER JOSEPH PRESSENDO MARVIN REAVES DIANET REYES-GARCIA JESSIE SANCHEZ ZANDRA STRAPLE CAYLEN WOUTERS DANIEL ZAVALA-SARABIA TIERRA WILLIAMS

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