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How tall do you think this light pole is?
X
I’m not sure, but we can use trigonometry to find out.
How are we going to do that?
First, imagine there’s a triangle here.
It looks like there’s a 40° angle of elevation and the distance to the pole is 7 feet.
40°
7 feet
X
We know this is a right triangle, and now we need find the height.
We need to use SOHCAHTOA to figure out the height. We know the adjacent side and the angle.
40°
7 feet
X
That means we will use tangent and the formula will be tan40=x/7
The height of this light pole is 5.9 feet.
40°
7 feet
5.9 feet
THE END.
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