Answer:
x = 55
Step-by-step explanation:
A triangle equals 180 degrees, b will be used to find the missing angle.
21 + 34 + b = 180
55 + b = 180
subtract 55 from both sides
b = 125
A straight line is 180 degrees and the b, the missing angle, and x are supplementary angles so
125 + x = 180
x = 55
Answer:
option 2
Step-by-step explanation:
Answer:

Step-by-step explanation:

<span>The diagonals are congruent.
</span>
Answer:
Step-by-step explanation:
no thx for 50points