In the given figure, GRAY is a rectangle. Complete the conclusion and write the reasons that will justify each of the statements.
1. If Sis the midpoint of GA, then
2. If GA bisects RY, then
3. IGR is perpendicular to RA, then
4. IT ZGRA and ZRAY are supplementary angles, then
5. If GYS and ASYA formed a right angle, then