Trig or Treat Halloween Costume Math Teacher Trig T-Shirt-T-Shirt

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, Trig or Treat Halloween shirt is great to wear to school, class, work or parties! Trigonometry is a branch of mathematics that studies relationships involving lengths and angles of triangles. Makes a great gift for your professor, teacher, wife or husband!, The lengths of the sides of a right-angle triangle and the angles between those sides have fixed relationships. The length of one side and the value of one angle is known, then all other angles can be determined algorithmically. Wear to your next event!, Lightweight, Classic fit, Double-needle sleeve and bottom hem