UNDERSTANDING QUADRILATERLS BY JITHENDRA

Information about UNDERSTANDING QUADRILATERLS BY JITHENDRA

Published on December 7, 2009

Author: veeramaneni

Source: authorstream.com

Content

Slide 1: UNDERSTANDING QUADRILATERALS Slide 2: POLYGON: A Simple Closed Curve Made Up Of Only One Line Segments Is Called A Polygon POLYGONS DIAGONALS: A Diagonal Is A Line Segment Connecting Two Non – Consecutive Vertices Of A Polygon CONCAVE POLYGON: A Polygon With Some Portion Of Diagonals In Their Exteriors And At least One Reflex Angle In Their Interior CONVEX POLYGON: A Polygon With No Portion Of Diagonals In Their Exteriors And No Reflex Angle In Their Interior REGULAR POLYGON: A Polygon Which Is Equilateral And Equiangular IRREGULAR POLYGON: A Polygon Which Is Not Equilateral Or Equiangular Slide 9: ANGLE SUM PROPERTY The Sum Of The Interior Angles Of Any Polygon Is (n – 2)180, Where ‘n’ Is The Number Of Angles The Sum Of The Exterior Angles Of Any Polygon Is 360 Number Of Sides = The Sum Of The Exterior Angles (360) Measure Of Each Angle The Sum Of The Interior Angles Of A Triangle Is (3 – 2)180 = 1 x 180 = 180 The Sum Of The Interior Angles Of A Quadrilateral Is (4 – 2)180 = 2 x 180 = 360 Slide 10: TYPES AND PROPETIES OF QUADRILATERALS QUADRILATERALS : General Properties QUADRILATERALS QUADRILATERALS QUADRILATERALS : 4 vertices 4 sides 4 angles QUADRILATERALS QUADRILATERALS QUADRILATERALS : QUADRILATERALS QUADRILATERALS 360o Slide 14: One pair of opposite sides are parallel Slide 15: Opposite sides are equal Opposite sides are parallel Opposite angles are equal Diagonals bisect each other The RHOMBUS : The RHOMBUS The RHOMBUS All sides are equal Opposite sides are parallel Opposite angles are equal Diagonals bisect each other at 90° The RECTANGLE : The RECTANGLE The RECTANGLE Opposite sides are equal Opposite sides are parallel All angles are right angles (90o) Diagonals are equal and bisect one another The SQUARE : The SQUARE The SQUARE All sides are equal Opposite sides are parallel All angles are right angles (90o) Diagonals are equal and bisect one another at right angles Slide 19: Every rhombus is a parallelogram but the opposite is not true. 2. Every rectangle is a parallelogram but the opposite is not true. 3. Every square is a parallelogram but the opposite is not true. 4. Every square is a rhombus but the but the opposite is not true. 5. Every square is a rectangle but the but the opposite is not true.

Related presentations


Other presentations created by veeramaneni