Student Workbook for Programming of CNC Machines. Ken Evans

rel="nofollow" href="#fb3_img_img_020c0c6e-9a69-56d3-a174-838950b68125.jpg" alt="images"/> B = 90° − A a and ∠ B b = a × tanB A = 90° − B b and ∠ A a = b × tabA B = 90° − A b and ∠ B A = 90° − B c and ∠ A a = c × sinA b = c × cosA B = 90° − A c² × sinA × cos c and ∠ B a = c × cosB b = c × sinB A = 90° − B c² × sinB × cos

Chart 1-7 Oblique Triangles

Known Sides and Angles	Unknown Sides and Angles	Area
All three sides a, b, c			C = 180° − A − B
Two sides and the angle between them a, b, ∠ C			B = 180° − A − C
Two sides and the angle opposite one of the sides a, b, ∠ A (∠B less than 90°)		C = 180° − A − B
Two sides and the angle opposite one of the sides a, b, ∠ A (∠B greater than 90°)		C = 180° − A − B
One side and two angles a, ° A, °B		C = 180° − A − B