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IrinaK [193]
4 years ago
14

PLEASE HELP!!!!! Geometry

Mathematics
1 answer:
barxatty [35]4 years ago
3 0

Answer:

53°

Step-by-step explanation:

i will use ∩ to represent arc since there is no arc sign

if ∩EF = 34, then ∡EFC = 34

think of EFC as an angle in the larger circle

since EFC = 34, ABC = 34 because they are opposite angles and opposite angles are always congruent.

ABD = AB + BD = 19 + 34 = 53

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