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diamong [38]
3 years ago
14

(( I will give 25 points and brainy for right answers (Please answer all!!) CORRECTLY~!!!))

Mathematics
1 answer:
Alborosie3 years ago
8 0
<span>1. D. Concave Hexagon

2.
(n - 2)180 = 2160
n - 2 = 12
n = 14
</span>
<span>C. 14

3.
</span><span><span>(n - 2)180 = 3060
n - 2 = 17
n = 19
</span>
<span>D. 19

4.
[(n - 2)180]/n =

</span></span><span>= [(15 - 2)180]/15

= 13(180)/15

= 156
</span>
<span>C. 156°</span>
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