The Measure of the Missing Angles can be found by this formula: x+y+z= 180°. You already know the measure of 1 Angle, which is 30°, right? You also know that this Triangle is a Right Triangle, so the Square for One Angle indicates that the Angle is 90°. y= 90°, and z= 30°, and you know that the Total Measure of any Triangle is 180° Total. 90°+30° = 120°, and 180°-120°= 60°, so finally, x= 60°, and y=90°, and z= 30°.
