(a) The top of a hill rises 370 feet above Checkpoint 5 . What is the altitude of the top of the hill? ft (b) How much higher is Checkpoint 1 than Checkpoint 4?

To find the altitude of the top of the hill above Checkpoint 5, simply take the altitude of Checkpoint 5 (let's say it is X feet), then add 370 feet to it, resulting in X + 370 feet as the total altitude. So if Checkpoint 5 is at ground level (0 feet), the hill's peak would be at 370 feet. For the height difference between Checkpoint 1 and Checkpoint 4, you would subtract the altitude of Checkpoint 4 from that of Checkpoint 1. If Checkpoint 1 is at Y feet and Checkpoint 4 is at Z feet, the height difference would be Y - Z feet. This value tells you exactly how much higher Checkpoint 1 stands over Checkpoint 4, which is key in understanding terrain navigation!