Answer:
(B), (C) and (E)
Step-by-step explanation:
Consider ABCD is a parallelogram, then the line drawn from one of the vertices of the parallelogram is perpendicular to the the base of the parallelogram and it is also known as the height of the parallelogram.
In order to find the area of parallelogram that is b×h, where base is b and height is h, we use that line which is drawn perpendicular to the base of the parallelogram.
Therefore, the altitude of the parallelogram is described by:
B. It is perpendicular to the base of the parallelogram.
C. It is the height of the parallelogram.
E. It is used in finding the area of a parallelogram