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Reika
[66]
3 years ago
12
Please help me. Please....
Mathematics
Answer
Comment
Send
1
answer:
Nadusha1986
[10]
3 years ago
8
0
Answer:
20
Step-by-step explanation:
1/2(a+b)=180
1/2(6+12)=18
1/2(18)=180
9/9=180/9
=20
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