1. 63 inches$^2$2. 90 feet$^2$3. 16 feet$^2$4. 144 inches$^2$ or 1 foot$^2$5. 2 yard$^2$ or 6 feet$^2$6. 5 inches$^2$7. 14 feet$^2$8. 6 miles$^2$9. 4 inches$^2$10. 64 feet$^2$