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babunello [35]
2 years ago
5

הום חמווובוביות חוב פובוס 2 M 150 K к 9 12 180 090

Mathematics
1 answer:
netineya [11]2 years ago
5 0

9514 1404 393

Answer:

  a = 6

Step-by-step explanation:

A triangle inscribed in a semicircle is always a right triangle, so ...

  15a° = 90°

  a = 90/15

  a = 6

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A

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