What quantity will correctly complete the formula? arc length = ? /360circumference

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m