Answer: 50°
Step-by-step explanation:
First, we can see that this is an isosceles triangle! That means the two angles at the bottom are the same.
A triangle's angles all equal 180 when added together, so knowing this, lets work backwards
180 - 80 = 100
Now, the two angles at the bottom are the same, so lets just divide 100 by 2, and our answer is 50!
Hope this helps :)
