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Sphinxa [80]
3 years ago
4

Find the m∠BAC, if m∠DEC = 45° and m∠EDC = 65°.

Mathematics
2 answers:
Ivahew [28]3 years ago
8 0

Answer:

<u><em>70 Degrees</em></u>

Step-by-step explanation:

Find the m∠BAC, if m∠DEC = 45° and m∠EDC = 65°.

50°

60°

<u><em>70°</em></u>

80°

Odyssey

lisov135 [29]3 years ago
3 0
Answer: C - 70°

Proof: Since ED || CB and CD || AB, then
∠ACB = ∠CED (corresponding angles along parallel lines; BC || DE)
Also, ∠DCE = ∠BAC (corresponding angles along parallel lines; AB || CD)

Thus, ∠BAC = ∠DCE = 180 - (45 + 65) = 70° (ie C)
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