Answer: 3
Step-by-step explanation:
Answer:
102
Step-by-step explanation
39'+39'=78'
180-78=102
y = 10
<u>Since all sides are equal, that means all angles are 60 degrees. 60 + 60 + 60 = 180</u>
<u />
5y + 10 - 10 = 60 - 10
5y / 5 = 50 / 5
Answer: y = 10
a