1. need help with triangel

In ΔABC, Ða = 40, , and AC = 10 centimeters, BC=10 . Find AB

2. Originally Posted by tukilala
In ΔABC, Ða = 40, , and AC = 10 centimeters, BC=10 . Find AB
note that you have an isosceles triangle, and you are given one of the angles. you can find all the others. now, use the law of sines to find AB