Answer:
Step-by-step explanation:
β ∈ { 0° , 18° , 180° , 198° }
16 would be the range. The lowest value is 5, and the highest value is 21. You just subtract those two which gives you 16! (:
Check the picture below.
as we can see in the picture, the lengths for YZ and ZX are very straight, let's get the side YX
2 4/10 = 2.4
hope this helped