<h2>A = 63 degrees</h2><h2>B = 36 degrees</h2><h3></h3><h3>Since angle <em>a</em> is supplementary to the 117 degree angle, we subtract 117 from 180.</h3><h3></h3><h3>180 - 117 = <u>63</u></h3><h3><u></u></h3><h3>We use that information to calculate angle <em>b. </em>Since all angles in a triangle add up to 180 degrees, we add 81 and 63, and then subtract that sum from 180.</h3><h3></h3><h3>81 + 63 = 144</h3><h3>180 - 144 = <u>36</u></h3><h3><u></u></h3><h3><em>Please let me know if I am wrong.</em></h3>
