I believe the answer would be 57*
because they are alternate angles. All the sides are the same across from one another making it the same triangle on top of a twin triangle. let me know if this doesn’t make sense!
Answer:
30
Step-by-step explanation:
It is an equalateral triangle
The answer would be the first one.
I find it easier to expand the equation (you still get the same answer).
= 2 * 7x + 2 * 3y + 2 * 3
= 14x + 6y + 6
Hope this helps!
The answer to this problem is -20