Answer:
5
ALL SIDES MUST BE THE SAME
Answer:
9
Step-by-step explanation:
3/4 = x/12
Cross-multiply: 36 = 4x
x = 9
Answer:
Description
Step-by-step explanation:
5 = 47, vertical angles
6 = 74, triangle interior angles add up to 180
7 = 59, linear pairs add up to 180