Question

two angles of a hexagon are 120 degree and 160 degree if the remaining four angles are equal find each equal angle

Answer 1

First you have to find the sum of the interior angle. To do that you would use the formula 180(n-2), n being the number of sides. When you solve that formula you should get that the interior angle is 720. Now, you know the two sides so take 120 and 160 and subtract that from 720. You should come up with 440. Take 440 and divide it by 4, since there are 4 missing sides. You should come up with 110. If you add 160+120+110+110+110+110=720, which is correct!