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OverLord2011 [107]
3 years ago
5

AB||CD. Find the measure of

Mathematics
2 answers:
Nady [450]3 years ago
6 0

Answer:

140 degrees

Step-by-step explanation:

According to the adjacent angle theorem, 4x + 20 = 5x - 10 so x = 30. If x = 30, angle BEF is 140

Please give me Brainliest! (If I'm correct)

dusya [7]3 years ago
5 0

Answer:

C) 140

Step-by-step explanation:

First find x by setting your formula up as

4x+20=5x-10

4x+20+10=5x

30=x

Now substitute 30 in place of x

5*30-10

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