ANGLES OF POLYGONS POLYGONS NOT POLYGONS CONCAVE CONVEX

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ANGLES OF POLYGONS

ANGLES OF POLYGONS

POLYGONS NOT POLYGONS

POLYGONS NOT POLYGONS

CONCAVE CONVEX

CONCAVE CONVEX

NAMES OF POLYGONS SIDES TRIANGLE QUADRILATERAL PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON DODECAGON N

NAMES OF POLYGONS SIDES TRIANGLE QUADRILATERAL PENTAGON HEXAGON HEPTAGON OCTAGON NONAGON DECAGON DODECAGON N – GON 3 5 7 9 12 N

INTERIOR ANGLE SUM OF CONVEX POLYGONS FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS

INTERIOR ANGLE SUM OF CONVEX POLYGONS FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS FROM ONE VERTEX 6 SIDES = 4 TRIANGLES

INTERIOR ANGLE SUM FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS FROM ONE VERTEX

INTERIOR ANGLE SUM FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS FROM ONE VERTEX 4 SIDES = 2 TRIANGLES

INTERIOR ANGLE SUM FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS FROM ONE VERTEX

INTERIOR ANGLE SUM FIND THE NUMBER OF TRIANGLES FORMED BY DIAGONALS FROM ONE VERTEX 8 SIDES = ? TRIANGLES

INTERIOR ANGLE SUM EACH TRIANGLE HAS 180° IF N IS THE NUMBER OF SIDES

INTERIOR ANGLE SUM EACH TRIANGLE HAS 180° IF N IS THE NUMBER OF SIDES THEN: INT ANGLE SUM = (N – 2 ) 180°

2 3 1 4 5 INT ANGLE SUM = ( 5 – 2 )

2 3 1 4 5 INT ANGLE SUM = ( 5 – 2 ) 180° ( 3 ) 180° = 540°

REGULAR POLYGONS HAVE EQUAL SIDES AND EQUAL ANGLES SO WE CAN FIND THE MEASURE

REGULAR POLYGONS HAVE EQUAL SIDES AND EQUAL ANGLES SO WE CAN FIND THE MEASURE OF EACH INTERIOR ANGLE

EACH INTERIOR ANGLE OF A REGULAR POLYGON = (N – 2 ) 180 N

EACH INTERIOR ANGLE OF A REGULAR POLYGON = (N – 2 ) 180 N REMEMBER N = NUMBER OF SIDES

REGULAR HEXAGON INT ANGLE SUM = (6 – 2 ) 180 = 720° EACH

REGULAR HEXAGON INT ANGLE SUM = (6 – 2 ) 180 = 720° EACH INT ANGLE = 720 = 120° 6

EXTERIOR ANGLE SUM EXTERIOR ANGLE ALL POLYGONS HAVE AN EXTERIOR ANGLE SUM OF 360°

EXTERIOR ANGLE SUM EXTERIOR ANGLE ALL POLYGONS HAVE AN EXTERIOR ANGLE SUM OF 360° THE MEASURE OF EACH EXTERIOR ANGLE OF A REGULAR POLYGON IS 360° N

NAME ______ # SIDES ____8____ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT

NAME ______ # SIDES ____8____ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT ANGLE SUM _____ EACH EXT ANGLE _____

NAME Octagon # SIDES ____8____ INT ANGLE SUM 6 x 180 = 1080° EACH

NAME Octagon # SIDES ____8____ INT ANGLE SUM 6 x 180 = 1080° EACH INT ANGLE 1080 / 8 = 135° EXT ANGLE SUM 360° EACH EXT ANGLE 360 / 8 = 45°

NAME DECAGON # SIDES ______ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT

NAME DECAGON # SIDES ______ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT ANGLE SUM _____ EACH EXT ANGLE _____

NAME # SIDES DECAGON 10 INT ANGLE SUM 8 x 180 = 1440° EACH

NAME # SIDES DECAGON 10 INT ANGLE SUM 8 x 180 = 1440° EACH INT ANGLE 1440 / 10 = 144° EXT ANGLE SUM 360° EACH EXT ANGLE 360 / 10 = 36°

NAME ______ # SIDES ______ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT

NAME ______ # SIDES ______ INT ANGLE SUM _____ EACH INT ANGLE _____ EXT ANGLE SUM _____ EACH EXT ANGLE 60______

NAME HEXAGON # SIDES 360 / 60 = 6 INT ANGLE SUM (6 -2)

NAME HEXAGON # SIDES 360 / 60 = 6 INT ANGLE SUM (6 -2) X 180 = 720° EACH INT ANGLE 720 / 6 = 120° EXT ANGLE SUM 360° EACH EXT ANGLE 60