Find m?NDC - Show Work

Question

m∠EDN = 14x, m∠NDC = 75x, and m∠EDC = 178°. Find m∠NDC.

Answer 1

Angle EDC = 178° = 14x + 75x

                        178° = 89x

 

                             x = 2°

Then angle EDC = 75*2 =. 150°

 

I hope it helped you.