The measure of the obtuse angle in the isosceles triangle is two and a half times the measure of one base angle. What are the measures of all the angles?
2 Answers
100, 40, 40
Explanation:
In an isosceles triangle, there are two angles that are the same and one that is different. We know there is one angle that is more than
I'm going to call
Let's substitute the second equation into the first:
Which means that
Explanation:
In an Isoceles triangle, the two base angles are equal. Let the base angles be
We need to find the value of
Since the sum of the angles in a triangle is
Now we know that the base angles are
So, the other angle is