I'm not sure what to do on these questions.
The measure of the vertex angle of an isosceles triangle is 26. Find the measure of each base angle
If the measures of the three angles of a triangle are x,2x-20, and 3x-10, then what is this type of triangle? Why?
1) By definition an icosceles triangle's two base angles are equal, so if you know all the angles add up to 180 then you subtract 26 from 180 and divide what's left by 2 to your answer.
2)X+2X-20+3X-10=180
X=35
Angles are 35, 50, 95
What kind of triangle is this?
You answer is at the following website:
http://www.mathwords.com/s/scalene_triangle.htm