Ineed for a test!
question #1 given: mangleedf = 120°; mangleadb = (3x)°; manglebdc = (2x)...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 13.09.2019 23:10, cpcoolestkid4
Ineed for a test!
question #1 given: mangleedf = 120°; mangleadb = (3x)°; manglebdc = (2x)°
prove: x = 24
3 lines are shown. a line with points e, d, c intersects a line with points a, d, f at point d. a line extends from point d to point b in between angle a d c. angle e d f is 120 degrees, angle c d b is (2 x) degrees, and angle b d a is (3 x) degrees.
what is the missing reason in step 3?
a 2-column table has 9 rows. column 1 is labeled statements with entries measure of angle e d f = 120 degrees measure of angle a d b = (3 x) degrees measure of angle b d c = (2 x) degrees, angle e d f and angle a d c are vertical angles, angle e d f is-congruent-to angle a d c, measure of angle a d c = measure of angle a d b + measure of angle b d c, measure of angle e d f = measure of angle a d c, measure of angle e d f = measure of angle a d b + measure of angle b d c, 120 = 3 x + 2 x, 120 = 5 x, x = 24. column 2 is labeled reasons with entries given, def. of vert. angles, question mark, angle add. post., definition of congruency, substitution, substitution, addition, div, prop. of equality.
vertical angles are congruent
substitution
definition of congruency
definition of
question#2
3 lines are shown. a line with points t, r, w intersects with a line with points s, r, v at point r. another line extends from point r to point u in between angle v r w.
which pair of angles are vertical angles?
anglewru and anglesrt
anglewrs and anglevrt
anglevru and angletrs
anglevrt and anglesrt
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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