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mezya [45]
3 years ago
5

Help please! find m∠bcf

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

m<BCF=140°

Step-by-step explanation:

first find m<BCD

m<BCD=180-50-90

m<BCD=40°.

to find m<BCF, we can do 180-m<BCD, since m<BCD and m<BCF add up to 180° (they form a straight angle)

180-m<BCD=m<BCF

180-40=m<BCF

m<BCF=140°

77julia77 [94]3 years ago
5 0

Answer:

BCF = 140°

See attached image.

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