Mathematics, 16.09.2019 17:10 genyjoannerubiera
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 equality
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Given: mangleedf = 120°; mangleadb = (3x)°; manglebdc = (2x)° prove: x = 24 3 lines are shown. a...
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