Answer:
- The diagonals of a parallelogram bisect each other.
Step-by-step explanation:
If one pair of consecutive sides of a parallelogram is congruent, then the parallelogram is a rectangle.
The diagonals of a parallelogram bisect each other.
If a quadrilateral has four right angles, then it is a square.
Answer:
1. always
2. sometimes
Step-by-step explanation:
Two lines are coplanar if they lie in the same plane or in parallel planes. There is ALWAYS a plane which contains two parallel lines (see first attached image for details).
Two lines that lie in parallel planes are sometimes parallel. For example, see at second image. Planes
and
are parallel. Consider pair of lines
and
- they are parallel, but if you consider the pair of lines
and
, you can see they are not parallel.
Answer:
The integer 27 is an odd number. The integer 27 is a Composite number. 13 is less than 27, so 27 is a deficient number.
Answer:
yes
Step-by-step explanation:
because its true