3 years ago

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

1 answer:

8 0

1. D. Concave Hexagon

2.
(n - 2)180 = 2160
n - 2 = 12
n = 14

C. 14

3.
(n - 2)180 = 3060
n - 2 = 17
n = 19

D. 19

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

= [(15 - 2)180]/15

= 13(180)/15

= 156

C. 156°

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