Question

What is the measure of ∠BCD?



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Answer 1

Angle BCD is equal to 77 degrees

Answer 2

77º

Explanation:

The picture shows us a parallelogram (AB║CD and AD║BC)

We know that in a parallelogram the inside angles sum up 360º. We also know that two adjacent angles in a parallelogram sum up 180º.

Therefore, we would have that ∠ABC + ∠BCD = 180

We solve for ∠BCD:

∠ABC + ∠BCD = 180

103 + ∠BCD = 180

∠BCD = 180 - 103

∠BCD = 77

Therefore, we have that ∠BCD = 77º