Answer:
50
Step-by-step explanation:
140- 40=100
100÷2=50
x=50
missing side is
mi .
<u>Step-by-step explanation:</u>
Here we have the following info from the figure: A right angled triangle with following dimensions



By Pythagoras Theorem :

⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Therefore, missing side is
mi .
F= kx
so to get k divide both sides by x
so k = F/x
90*1566=140,940 because how many means times