the primary colors:
red and blue
red and yellow
yellow and blue
Yes these two share common ancestors.
An angle is a geometric figure formed by two rays that share a common endpoint.
Two rays that share a common endpoint share an angle. See the related link, "Rays forming an angle" for a picture.
Yes, any two angles in a parallelogram that share a common side are supplementary.
Yes when two lines share a common end point an angle is formed
a bite me.
They are adjacent angles.
A factor that two or more numbers share is known as a common factor.
A Common Multiple
Angle
scatterplot
The vertex.