What is the value of x if triangle ABC is equilateral?
Pick two sides to set equal to each other and solve.
Question 2
2.
What is the measure of angle 4
Angle 4 is an exterior angle, so add the 60 and 40.
Question 3
3.
Set 16x+5=85 and solve.
Question 4
4.
You already have an angle congruent to an angle and a side congruent to a side, so what else would you need to know is congruent so that you have another angle?