The consecutive angles of a particular trapezoid form an arithmetic sequence. If the largest angle measures \(120^{\circ}\), what is the measure of the smallest angle?
+592 Other angles sum up to 240$^\circ$
mean of all 4 numbers:360/4=90
120-90=30
Lowest number: 90-30=$\boxed{60}$
+592 Other angles sum up to 240$^\circ$
mean of all 4 numbers:360/4=90
120-90=30
Lowest number: 90-30=$\boxed{60}$
