In δabc, c = 5.4, a = 3.3, and measure of angle a = 20 degrees. what are the possible approximate lengths of b? use the law of sines to find the answer. 2.0 units and 4.6 units 2.1 units and 8.7 units 2.3 units and 7.8 units 2.6 units and 6.6 units