To find the measure of angle NLM which is x, we must use trigonometry.
In this case we use the sine function:
(side opposite angle NLM) / (hypotenuse)
![sin(x) = \frac{4.9}{7.5} \\x = sin^{-1}(\frac{4.9}{7.5})\\x= 40.8 degrees](https://tex.z-dn.net/?f=sin%28x%29%20%3D%20%5Cfrac%7B4.9%7D%7B7.5%7D%20%5C%5Cx%20%3D%20sin%5E%7B-1%7D%28%5Cfrac%7B4.9%7D%7B7.5%7D%29%5C%5Cx%3D%2040.8%20degrees)
Hope that helps!
There are 12 months in a yr so 12/3=4 then 1/3x4=4/3 so 1ft and 1/3 erode each yr. C is the correct answer<span />
Answer:
I solved it and my answer is 20
the sphere would fall over or be unbalanced on the cylinder, it doesn't have a flat surface where it can be balanced.
(unless you use glue or stick the sphere onto it :P)