Asked by dee
Heather is given the coordinates of the vertices of quadrilateral
ABCD.
ABCD.
She is asked to prove whether the quadrilateral is a parallelogram. Her proof follows the diagram.
Given:
Quadrilateral
ABCD
ABCD
has vertices at
A(−8,−1),
A(−8,−1),
B(−1,−7),
B(−1,−7),
C(2,2),
C(2,2),
and
D(−5,8).
D(−5,8).
Prove:
Quadrilateral
ABCD
ABCD
is a parallelogram
ABCD.
ABCD.
She is asked to prove whether the quadrilateral is a parallelogram. Her proof follows the diagram.
Given:
Quadrilateral
ABCD
ABCD
has vertices at
A(−8,−1),
A(−8,−1),
B(−1,−7),
B(−1,−7),
C(2,2),
C(2,2),
and
D(−5,8).
D(−5,8).
Prove:
Quadrilateral
ABCD
ABCD
is a parallelogram
Answers
Answered by
oobleck
check each side length
there should be two pairs of equal length
check each side's slope
there should be two pairs that are the same
there should be two pairs of equal length
check each side's slope
there should be two pairs that are the same
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