CPM Homework Help : INT2 Problem 7-86

Multiple Choice: Which equation below correctly represents the relationship of the side lengths of the trapezoid given in the diagram below?

A trapezoid with horizontal parallel bases has a left side length of 3, x minus 2 and a right side length of 2, x + 17. Both sides are marked with two tick marks.

$3x - 2 + 2x + 17 = 360^\circ$

$3x - 2 + 2x + 17 = 180^\circ$

$3x - 2 + 2x + 17 = 90^\circ$

$3x - 2 = 2x + 17$

Hint:

If the angles have the same measures, what does that tell you about the legs of the trapezoid?

Answer: