Final answer:
To find the measure of angle yº in a trapezoid, you would typically use trapezoid properties, the Pythagorean theorem, or trigonometric relationships. However, without further information or a diagram, we cannot provide a specific measure for yº.
Step-by-step explanation:
The question seems to be asking for the measure of angle yº in a trapezoid, where the measure is given as (6x + 20º). However, without additional information or a reference to a diagram, it's impossible to provide a specific answer for the value of yº. In general, you can use properties of trapezoids, the Pythagorean theorem, and trigonometric relationships to find missing angle measures and side lengths in trapezoids. For instance, the sum of the interior angles in any quadrilateral, including a trapezoid, is 360 degrees. Furthermore, if you have a right trapezoid or any right angles, you could apply the Pythagorean theorem or trigonometric ratios like sine, cosine, or tangent (such as tan 0 = y/x to solve for a side length).
Without specific values or a diagram, it's recommended to review the properties of trapezoids and apply trigonometric principles as needed to find the measure of angle y.