Jaxon is creating a mosaic design on a rectangular table. he has added two pieces to one of the corners. the first piece has an angle measuring 38° and is placed in the corner. a second piece has an angle measuring 27° and is also placed in the corner. draw a diagram to model the situation. then, write an equation, and use it to determine the measure of the unknown angle in a third piece that could be added to the corner of the table.