Mathematics, 26.10.2020 20:00 ramseynikki87

Clara's proof 1. For triangles AOB and COD, angle 1 is equal to angle 2, as they are vertical angles.
2. AO = OC and BO = OD because it is given that diagonals bisect each other.
3. The triangles AOB and COD are congruent by SAS postulate.
4. Similarly, triangles AOD and COB are congruent.
5. By
angle ABD is equal to angle CDB and angle ADB is equal to angle CBD.
6. As the alternate interior angles are congruent, the opposite sides of quadrilateral ABCD are parallel.
7. Therefore, ABCD is a parallelogram.
Which is the missing phrase in Clara's proof?
O CPCTC
property of parallelograms
transitive property
O vertical angles theorem

Clara's proof

1. For triangles AOB and COD, angle 1 is equal to angle 2, as they are vertical ang

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 20:50, badatmathmate8388

Write the equation in logarithmic form e^x=403.429

Answers: 1

continue

Mathematics, 21.06.2019 22:00, mairadua14

To decrease an amount by 16% what single multiplier would you use

Answers: 1

continue

Mathematics, 21.06.2019 22:00, only1cache

Find the maximum value of p= 4x + 5y subject to the following constraints :

Answers: 1

continue

Mathematics, 21.06.2019 23:30, byron17

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is

Answers: 3

continue

You know the right answer?

Clara's proof 1. For triangles AOB and COD, angle 1 is equal to angle 2, as they are vertical angle...