A wire is to be attached to a telephone pole that is perpendicular to the ground. The wire will make a 60 angle with the ground. It will be anchored to the ground 10 feet from the base of the pole. How high up the pole will the wire be anchored?

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Answer 1 · 2016-02-08T13:06:49

I found: #17.3"ft"#...but I used trigonometry!

Have a look:
enter image source here
We can use the tanagent and say that:

#h/10=tan(60^@)#

so that:
#h=10tan(60^@)=17.3"ft"#