How much is the mean of the measures of all the interior angles of a pentagon? |
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(a) |
950 |
(b) |
980 |
(c) |
1080 |
(d) |
1200 |
How much is the mean of the measures of all the interior angles of a pentagon? |
|||||||
(a) |
950 |
(b) |
980 |
(c) |
1080 |
(d) |
1200 |