Given:
In triangle GHI, h = 300 inches, G=30° and H=29º.
To find:
The length of i.
Solution:
We have, G=30° and H=29º.
Using angle sum property, we get





According to Law of sines,

Using Law of sines, we get



Multiply both sides by 0.8572.



Therefore, the length of i is about 530 inches.
Answer:
The formula for the volume of a cylinder is V=Bh or V=πr2h .
For all triangles, the angle sum is 180°, therfore we can add all the angles up to solve x
54 + 55 + x + 74 =180
183 + x =180
X = 180 - 183
X = - 3 °
Don't worry, negative result is normal and possible.