Using Trigonometry to Find Angle Measures Name key Date Period CCS x — x— cos Find each angle measure to the nearest degree.

As the name suggests, trigonometry deals mostly with angles and triangles; in particular, it's defining and using the relationships and ratios between angles and sides in triangles.
The triangle of most interest is the right-angled triangle.The right angle is shown by the little box in the corner: 1) tan A = 2.0503 3) tan Y = 0.6494 5) v = 0.6820 Oe6ðX) 2) cosz=o.1219 4) sin U = 6) sin C = 0.8746 0.2756 19 Find the measure of the indicated angle to the nearest degree. The word itself comes from the Greek trigōnon (which means "triangle") and metron ("measure"). There are some easy-to-remember rules for determining angles in a cinch, such as the fact that the sum of the interior angle of a triangle is 180 degrees. Trigonometry is a branch of mathematics. 55 51 27 10) 24 14 12) 20 14) 56 52 55 34 11) Right-Angled Triangle.

Trigonometry is the study of triangles, specifically measuring their sides and angles. What is trigonometry? trigonometry - measure of an angle Any real number may be interpreted as the radian measure of an angle as follows: If , think of wrapping a length of string around the standard unit circle C in the plane, with initial point P (1,0), and proceeding counterclockwise around the circle; do the same if , but wrap the string clockwise around the circle. Trigonometry helps us find angles and distances, and is used a lot in science, engineering, video games, and more!