CPM Homework Banner
1-62.

Determine the value of in the diagram below. Justify your reasoning.

Triangle, with all 3 sides extended into lines. At left bottom vertex, angle above point of intersection of the 2 lines, labeled 150 degrees. At right bottom vertex, angle above point of intersection of the 2 lines, labeled, x. At top vertex, angle left of the point of intersection of the 2 lines, labeled 140 degrees.

Straight angles have a total of .

Every triangle's interior angles also add up to .