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borishaifa [10]
3 years ago
14

Anyone know the answer to this please?

Mathematics
2 answers:
vredina [299]3 years ago
6 0
Answer is :
140 degrees


Because I said so
Svetradugi [14.3K]3 years ago
4 0

Answer:

140 degrees

Step-by-step explanation:

The center angle of a semi circumference is 180 degrees

BC 180 - 20 - 20 = 180 - 40 = 140 degrees

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