destinyberg destinyberg

09-01-2020
Mathematics

contestada

Find the sum of the interior angle measures of a convex 21-gon

Respuesta :

sqdancefan sqdancefan

11-01-2020

Answer:

3420°

Step-by-step explanation:

The sum of angle measures of an n-gon is ...

angle total = (n-2)×180°

For n = 21, the angle total is ...

21-gon total = (21 -2)×180° = 3420°

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