Mathematics, 15.12.2020 05:30 Chrisis9987

In Δ ABC shown below, side AC is extended to point D with m∠DAB = (180 – 3x)°, m∠B = (6x – 40)°, and m∠C = (x + 20)°. What is m∠ABC?

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In Δ ABC shown below, side AC is extended to point D with m∠DAB = (180 – 3x)°, m∠B = (6x – 40)°, and...

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