Which of the following ended the period of Presidential Reconstruction? a. the Radical Republicans' success in the elections of 1866
b. the withdrawal of federal troops from the South in 1877
c. the election of Ulysses S. Grant in 1868
d. the assassination of Abraham Lincoln in 1865

answer: this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

step-by-step explanation:

there are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

we need

and law of cosines,

the three equations are

see attached image for solution.

what was the significance of the plessy vs ferguson ruling and jim crow laws

answer the impact. plessy v. ferguson allowed 'separate but equal, also known as segregation, to become law in the united states