Plastic Protractor With White Background. A Protractor Is A Ruler That Can Be Used To Measure And Form Angles

KEYWORDS

angle angles architecture art background brand brown ceiling centimeter circle collection concept construction degree design diagram document drafting draw drawing education equipment font form geometric geometry grade group horizontal icon instrument isolated label learn length lighting line math mathematic mathematics measure measurement metric number object office organ pattern plan plastic protractor protrwith rule ruler scale school set sketch supply text textile tool transparent triangle trigonometry used white