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Quadrilateral

Published on Nov 23, 2015

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PRESENTATION OUTLINE

1.

QUADRILATERALS

JULIA KOENIG, DEIRDRE BURKE, NED WERNER
Photo by luisfraguada
2.

WHAT'S A QUADRILATERAL?

  • 4 sided figure with 4 straight sides
Photo by oschene
3.

PARALLELOGRAM

  • Quadrilaterals with both pairs opposite sides parallel
  • Diagonals bisect eachother
  • Consecutive angles supplementary
  • Opposite angles are congruent & Opposite sides are congruent
4.

AREA FORMULA FOR PARALLELOGRAM

A=BH
5.

RECTANGLE

  • Parallelogram with 4 equal angles are 90 degrees
  • Diagonals bisect and are congruent
  • Opposite sides are parallel and congruent
6.

AREA FORMULA FOR RECTANGLE

A=BH
7.

SQUARE

  • Rectangle with equal sides
  • Rhombus with 90 degrees diagnals bisect at a right angle
  • Rhombus bisect at a right angle or 90 degrees
8.

AREA FORMULA FOR SQUARES

A=S^2
9.

TRAPEZOID

  • Quadrilateral with 1 pair of parallel sides
  • Bases and legs are congruent
  • Lower base and upper base angles are congruent
  • Diagnals are congruent
Photo by Steve Snodgrass
10.

AREA FORMULA FOR TRAPEZOID

A=SIDE+SIDE (TOP AND BOTTOM)DIVIDED BY 2 TIMES HEIGHT
11.

KITE

  • Quadrilateral with 2 sets of congruent sides
  • Diagonals intersect at right angles
  • No parallel sides
  • One pair of opposite angles are congruent
12.

AREA FORMULA FOR KITES

A=1/2(D1XD2)
13.

RHOMBUS

  • Parallelogram with equal sides
  • Diagonals bisect at a 90 degree angle
Photo by shizhao
14.

AREA FORMULA FOR RHOMBUS

A=1/2(D1XD2)

Julia Koenig