In the figure above, segments AE and BD are parallel. If angle BDC measures 58° and angle ACE measures 62°, what is the measure of angle CAE ?
58°
60°
62°
120°
Choice B is correct. It’s given that angle ACE measures . Since segments AE and BD are parallel, angles BDC and CEA are congruent. Therefore, angle CEA measures
. The sum of the measures of angles ACE, CEA, and CAE is
since the sum of the interior angles of triangle ACE is equal to
. Let the measure of angle CAE be
. Therefore,
, which simplifies to
. Thus, the measure of angle CAE is
.
Choice A is incorrect. This is the measure of angle AEC, not that of angle CAE. Choice C is incorrect. This is the measure of angle ACE, not that of CAE. Choice D is incorrect. This is the sum of the measures of angles ACE and CEA.