I don't know sorry
Please please please I'm sorry I literally don't know
The length of each side of a decagon that is 65 units total, each side will be 6.5 units.
Decagon = 10 sides.
65 ÷ 10 = 6.5
1.lithosphere( land)
2.hydrosphere (water)
3.biosphere (living things)
4.atmosphere (air)
everything in the earth's system can be placed into one of these spheres.