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In the diagram below, DE = AE, BA || CE, CB || DA and mZC = 63º.Find mZBAE.

In the diagram below, DE = AE, BA || CE, CB || DA and mZC = 63º.Find mZBAE.-example-1
User Streetboy
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Being CE parallel to BA, and CD in the same line, CD is parallel to BA.

We also know BC is parallel to DA. All this means ABCD is a parallelogram

Under these conditions, angle BAD is congruent to angle C. Thus, angle BAD has a measure of 63°.

In a parallelogram, every pair of consecutive angles add up to 180°, thus CDA has a measure of 180° - 63° = 117°.

Angle EDA is congruent to angle C, thus its measure is 63°

Since DE is congruent to AE, triangle EDA is isosceles and the measure DAE is 63°. Finally the required angle is BAE= 63° + 63° = 126°

User Viktor Klang
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