daebreonnakelly
21.03.2021 •
Mathematics
If n is number of sides, then sum of internal angles of a polygon is:
A. n x 180
B. n/2 (180)
C. (n-1)×180
D. (n-2)×180
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Ответ:
D
Step-by-step explanation:
The answer is d using the internal angles sides formula.
Ответ: