mine

exterior angles of polygons

100

Nonagon

40

200

Decagon

36

300

Hexagon

60

400

Pentagon

72

500

Hexadecagon

45/2 or 22.5

American poets and their works

100

A dream within a dream

Edgar Allan Poe

200

A girl

Ezra Pound

300

Birches

Robert Frost

400

Buffalo Bill's

E.E. Cummings

500

Excelsior

Henry Wadsworth Longfellow

Famous Oklahomans

100

Actor and musician known as the singing cowboy

Orvon "Gene" Autry

200

Founder of Wal-Mart

Samuel Moore Walton

300

Country singer known for songs like friends in low places and the dance

Garth Brooks

400

Prohibitionist and activist known for attacking taverns with a hatchet

Carrie Nation

500

Female outlaw whose mysterious death gave her infamy

Belle Starr

American Playwrights and their works (name the author)

100

45 seconds from Broadway

Neil Simon

200

A raisin in the sun 

Lorraine Hansberry

300

Death of a salesman

Arthur Miller

400

August: Osage County

Tracy Letts

500

Anne of the thousand days

Maxwell Anderson

Simplifying radicals (r means radical)

100

r72

6r2

200

r243

9r3

300

r98

7r2

400

r112

4r7

500

r320

8r5