Question

110 Jeremy needs to cut a triangular piece of tile for a mosaic. In order to cut it properly, he needs to know the measure of angle e as shown in the figure. The lengths of XY, YZ, and XZ are 110 millimeters, 141 millimeters, and 203 millimeters respectively. What is the value of 07 (Round your answer to the nearest degree if necessary. Do not include any units.)

Answer 1

So LLY Z F LzYX = 180° 0 = 180° - Layx. Cos (180 - 0) = | 4x² + y2² - x 2² RSX)(x2) I - Coso = 110² + 141² - 2032 - 24 (110) (141) O = Cos | 769 ) = 72.69° or 73 approx. 2585