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anonymous

  • 4 years ago

What is the sum of the measures of the interior angles of a regular polygon where a single exterior angle measures 72°?

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  1. anonymous
    • 4 years ago
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    360/n = 72 360 = 72n n = 5 So it's a pentagon Now use the formula to find the sum of the measures of interior angles

  2. anonymous
    • 4 years ago
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    so its 5 ?

  3. anonymous
    • 4 years ago
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    nope it's a five-side shape

  4. anonymous
    • 4 years ago
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    ok so its 108 ?

  5. anonymous
    • 4 years ago
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    it says sum of all interior angles

  6. anonymous
    • 4 years ago
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    180 * (n-2) is the general formula 180 * (5 - 2) = 180 * 3 = 540

  7. anonymous
    • 4 years ago
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    ok so 5 * 72?

  8. anonymous
    • 4 years ago
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    actually 5 * 108

  9. anonymous
    • 4 years ago
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    right so i was on the right track

  10. anonymous
    • 4 years ago
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    Good Job!

  11. anonymous
    • 4 years ago
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    540

  12. anonymous
    • 4 years ago
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    yes

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