Mathematics, 06.10.2021 14:00 alannaswitzer
HELP URGENT GEOMETRY
Tyler has written an incorrect proof to show that quadrilateral ABCD is a
parallelogram. He knows segments AB and DC are congruent. He also knows
angles ABC and ADC are congruent. Find the mistake in his proof.
Segment AC is congruent to itself, so triangle ABC is congruent to triangle ADC by
Side-Angle-Side Triangle Congruence Theorem. Since the triangles are congruent, so
are the corresponding parts, and so angle DAC is congruent to ACB. In
quadrilateral ABCD, AB is congruent to CD and AD is parallel to CB. Since AD is
parallel to CB, alternate interior angles DAC and BCA are congruent. Since
alternate interior angles are congruent, AB must be parallel to CD. Quadrilateral
ABCD must be a parallelogram since both pairs of opposite sides are parallel.
A
B
Answers: 2
Mathematics, 21.06.2019 16:00
What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.
Answers: 3
Mathematics, 21.06.2019 17:30
The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?
Answers: 1
Mathematics, 21.06.2019 18:00
Pat listed all the numbers that have 15 as a multiple write the numbers in pats list
Answers: 2
HELP URGENT GEOMETRY
Tyler has written an incorrect proof to show that quadrilateral ABCD is a
Biology, 16.09.2019 14:00
English, 16.09.2019 14:00
Biology, 16.09.2019 14:00
Business, 16.09.2019 14:00
Social Studies, 16.09.2019 14:00
Computers and Technology, 16.09.2019 14:00
English, 16.09.2019 14:00
Mathematics, 16.09.2019 14:00
English, 16.09.2019 14:00
History, 16.09.2019 14:00