Question

What is the sum of the angle measure with 9 sides

Answer 1

Answer:

Step-by-step explanation:

1260°

Answer 2

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$total \: sum \: of \: angles \: = (n - 2) \times 180 \\ where \: n \: is \: sides \: of \: shape$

$(9 - 2) \times 180 \\ = 7 \times 180 \\ = 1260$

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