Answer:
Step-by-step explanation:
For what value of a must LMNO be
a parallelogram?
2. Can you prove ABCD is a parallelogram based on the given
information? Explain.
Given: X 5 5, Y 5 4
Prove: ABCD is a parallelogram
3. Do you UNDERSTAND? Quadrilateral QRST has two pairs
of congruent sides, but it is not a parallelogram. What fi gure
is it? What further condition would it have to satisfy to be
a parallelogram?
L M
O N
2a
8b 1
2b 1
4b 7
A D
B C
3x 12 6x 3
7y 8
5y
6-3 Lesson Quiz
6-3 Solve It!
Answers
Solve It!
Yes; explanations may vary.
Sample: ' are > corresp. ', so
the horizontal lines are 6, or alt.
int. ' are >, so the lines are 6.
Lesson Quiz
1. 2.5
2. Yes, by Theorem 6-8
3. The fi gure is a kite. To be a
parallelogram, it would have
to have pairs of opposite
congruent sides, not just
cong