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Mathematics

1 answer:

Anon25 [30]2 years ago

5 0

Triangle ABC is isosceles (even tho' it doesn't look so).

m<BDE = m<BED because of that.

Thus, 66 degrees + 2 m<BDE = 180 degrees, and

2 m<BDE = 114 degrees. Thus, m<BDE = 57 degrees.

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