Could you give the question more clear?
Two angles<span> are </span>Adjacent<span> when they have a common side and a common vertex (corner point) and don't overlap</span>
Answer:
A.12
Step-by-step explanation:
2×r-13 = 11
r + 2 = 14
11 + 14 = 25
Answer:
1=1 times 2/2 1 + 2=2 times 3/2 1 +2+3=3 times 4/2 1+2+3+4=4 times 5/2 1+2+3+4+5=5 times 6/2