Respuesta :
Short Answer B <<<<< (70) but only if the diagram is correct.
Remark
The triangles sides had better rest on their respective straight lines or the problem can't be solved. The diagram below shows what I mean
I am assuming that x and the third angle of the triangle with 55 degrees are vertically opposite and not supplementary. Otherwise it can't be done with certainty. I have enclosed a diagrams to show what I mean. If this diagram is incorrect, leave a comment.
Solution
You need to remember 2 things.
1. Every triangle has 180 degrees.
2. Vertically opposite angles are equal.
call the vertex angle V
V + 55 + 55 = 180 Add the two base angles together.
V + 110 = 180 Subtract 110 from both sides
V = 180 - 110
V = 70
Step 2
Find x
x = V The angles are vertically opposite.
x = 70 <<<< Answer
Remark
The triangles sides had better rest on their respective straight lines or the problem can't be solved. The diagram below shows what I mean
I am assuming that x and the third angle of the triangle with 55 degrees are vertically opposite and not supplementary. Otherwise it can't be done with certainty. I have enclosed a diagrams to show what I mean. If this diagram is incorrect, leave a comment.
Solution
You need to remember 2 things.
1. Every triangle has 180 degrees.
2. Vertically opposite angles are equal.
call the vertex angle V
V + 55 + 55 = 180 Add the two base angles together.
V + 110 = 180 Subtract 110 from both sides
V = 180 - 110
V = 70
Step 2
Find x
x = V The angles are vertically opposite.
x = 70 <<<< Answer

Answer:
70 degrees is your answer.
Step-by-step explanation:
I got it right on the test :)