For items 6-8, find the measure of the arc or central angle indicated in the figure at the right 6. What is the measure of ÚY ? b. 27° b. 37° c. 54 d. 74° 7. What is the measure of ET ? c. 30° b. 60° c. 90° d. 180° 8. What is the measure of < UAY ? A.27° b.37° c.54° d.74°