Answer:
A
Step-by-step explanation:
supplementary agles add up to 180 degrees, so when you subtract 162 from 180, you get 18. Hope this helped :D
supplementary means it adds up to 180
so 162 + 18 = 180
think ab = 4
m<EDC=110
angle c is 35 degrees too, because this is isoceles
using the sum of the triangle's angles which are always 180
70+x=180
x=110
the answer is A
hope this helps :)