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Mathematics 9 Online
OpenStudy (anonymous):

In a geometry class, Nazia is asked to draw a concave octagon. She draws a closed figure with eight sides. The sides are not equal in length. The greatest interior angle measure is 190°, and the least interior angle measure is 75°. Which statement about the figure Nazia draws is true? She draws a correct figure because an interior angle measures more than a straight angle. She draws a correct figure because no interior angle measures more than a straight angle. She draws an incorrect figure because an interior angle measures more than a straight angle. She draws an incorrect figure because no interior angle measures more than a straight angle.

OpenStudy (saifoo.khan):

im not really sure but i think she drew it correct.

OpenStudy (saifoo.khan):

i think A.

OpenStudy (saifoo.khan):

if it's something like this, http://etc.usf.edu/clipart/42600/42626/irregoct_42626_lg.gif

OpenStudy (accessdenied):

I'm thinking A, "She draws a correct figure because an interior angle measures more than a straight angle." Since to be concave, it would have an interior angle like |dw:1333748919994:dw| which it does

Directrix (directrix):

She draws a correct figure because an interior angle measures more than a straight angle. This octagon is interesting because it is concave and not convex. I used an online tool to draw such a concave octagon. http://www.mathopenref.com/polygonconcave.html

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