Question 1 Report
In the diagram above, < CDE = < CED = 15o
(base < s of isos. △)
< ECD = 180o - (15 + 15)o
= 180o - 30o = 150o
But x + 110o = 150o
(Sum of opp. interior < s of a△ = opp. exterior < )
x = 150o - 110o = 40o
Everything you need to excel in your exams