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Monica [59]
3 years ago
11

HELP ME GET THE SOLUTION ​

Mathematics
1 answer:
malfutka [58]3 years ago
3 0

Answer:

r = 143

Step-by-step explanation:

the \: formula \: is = (n - 2) \times 180 \\ (5 - 2) \times 180 = 540 \\ 540 - 124 - 124 - 95 - 54 = 143

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