A nonagon has 9 sides. (Notice how non sounds similar to 9).
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Answer:
Three or more points that lie on the same line are collinear points .
Step-by-step explanation:
Answer:
none of the above
Step-by-step explanation:
Vertical angles are opposite angles made by intersecting lines
a and b are not vertical angles no
Complementary angles - two angles that add to 90 degrees
b is 90 degrees by itself no
Supplementary angles - two angles that add to 180 ( would make a straight line)
a and b do not form a straight line they are not vertical angles - no
The correct answer should be D. Babylonians.