False. Vertex
I don’t know
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False
A bigger square, a rectangle, an irregular concave hexagon, an irregular concave octagon are all possibilities.
False
I don’t know
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An angle is a geometric figure formed by two rays that share a common endpoint.
Yes, an octagon could be considered to be made out of 8 triangles.
Yes, it can, even a regular octagon.
angle
An angle.
No, an octagon is not made up of right angles but of obtuse angles. It is made up of 8, 135 degree angles.
A figure that is made up of two noncollinear rays with a common endpoint is an angle. The angle that is formed can be acute, right, obtuse or reflex.
ANGLE
A line
an angle