?Which of the following is not true?
?
A. ?All polygons with n-sides are closed.
B. ?All closed figures are polygons.
C. ?An n-sided polygon has n-vertices.
D. ?An n-sided polygon has n-sides.
E. ?All right triangles are n-sided polygons.
Answer: B
Mathematics
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A. - 
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A. 3,009,831 B. 2453 C. 2455 D. 3,012,285
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A. 4x2 - 
B. 4x2 - 
x - 
C. 2x2 - 
D. 4x2 + 
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= 0
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