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anonymous

  • 5 years ago

A convex heptagon has interior angles that measure 120, 115, 135, 95, 155, and 125 degrees. What is the measure of the seventh interior angle?

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  1. anonymous
    • 5 years ago
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    The sum of the interior angles of a convex polygon is always\[(n-2)180 \]degrees. Your heptagon should have a complete angle sum of (7-2)*180=900. All you have to do is subtract the six angles you have to get your seventh. Should be 155.

  2. anonymous
    • 5 years ago
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    No what you do is add up all the numbers and then do 365degree's subtacted ny the sum of all the numbers and it gives you the seventh degree.(: your welcome!!! hey i'm pretty smart cause i'm only 11.

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