3 years ago

AC DF and YZ are straight lines and all angles are in degrees.

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

4 0

Answer:

Detail in steps

Step-by-step explanation:

∠ABY + ∠YBC = 180

(x + 25) + (2x + 50) = 180

3x + 75 = 180

3x = 105

x = 35

m∠YBC = 2 x 35 + 50 = 120

m∠BEF = 5 x 35 - 55 = 120

m∠YBC ≅ m∠BEF

∴ AC // DF

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