heintzelmanvp6ir6d heintzelmanvp6ir6d
  • 03-10-2018
  • Mathematics
contestada

Help! Geometry question.

Help Geometry question class=

Respuesta :

tramserran
tramserran tramserran
  • 03-10-2018

Start with congruencies of 130°:

∠1 and 130° are vertical angles

∠2 and 130° are corresponding angles

∠5 and 130° are alternate exterior angles

m∠1 = m∠2 = m∠5 = 130°

∠7 and 130° are supplementary angles (which means their sum is 180°). So, ∠7 = 50°

Next, find congruencies of ∠7:

∠3 and ∠7 are vertical angles

∠4 and ∠7 are corresponding angles

∠6 and ∠7 are alternate exterior angles

m∠3 = m∠4 = m∠6 = m∠7 = 50°

Answer: B



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