The graph shows the height of a willow oak tree write an equation of the line

c^2-b^2=a^2

if you're given the shadow of the tree and an angle you can find C, square it, then subtract the length of the shadow (squared) from the C^2, then take the square root of A. 

I think. that's how I would do it...

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}