Area= base + base / 2 then multiply the height.
Example: 6+7 /2*6= 39
If this question is as simple as it seems all you would have to do is subtract. If he is down 96 feet then goes up 49 feet you would do 96-49.
The answer is 47 feet.
I hope this helps! Let me know if this is right.
VX is 43° due to that the angle is on the outside and the last two arcs come to be 96° times two plus 125° and 43° all equals 360°.