20.3 ANGLES AND POLYGONSObjective: To use angles to classify and measure polygons

POLYGONA closed Plane figure made up of three or more line segments

TRIANGLE

QUADRILATERAL

PENTAGON

HEXAGON

OCTAGON

DECAGON

REGULAR AND IRREGULAR POLYGONS

Regular Polygon: Is a polygon with all sides of equal length and

all angles of equal measure

TRIANGLE

QUADRILATERAL

EXAMPLES

C=35◦

C=26◦ A=130◦

CLASSWORKTxt book Page 436 Q 6 – 13 and Q 20 – 23

HomeworkPw Pg 106 Q 1 – 6 and Q 11 – 14