Mathematics, 07.01.2021 02:10 live4dramaoy0yf9

BCDE is a parallelogram. What is the measure of ∠BEC?

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∠BEC = °
A parallelogram B C D E. Side E D is the base. The pairs of opposite sides are parallel. Diagonal E C divides the parallelogram into triangles C D E and B C E. Angle B is labeled 60 degrees and angle C E D is labeled 40 degrees.

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BCDE is a parallelogram. What is the measure of ∠BEC?

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