C. increased job opportunities :)
In April of 1869, he obtained a patent for one of his most important inventions, the air brake. This device enabled trains to be stopped with fail-safe accuracy by the locomotive engineer for the first time and was eventually adopted on the majority of the world's railroads
Answer:
· This is what I did Angle A and Angle B = 90 degrees, Angle A = 58 degrees 90 - 58 = 32 degrees 180
Explanation:
