PLEASE HELP!

After a storm, a tree lies as show in the diagram in the comments. What was the original height of the tree? Round to nearest whole foot.

Question

PLEASE HELP!

After a storm, a tree lies as show in the diagram in the comments. What was the original height of the tree? Round to nearest whole foot.

anonymous · Answer

attachment

paxpolaris · Answer

does that say 97in. ?

anonymous · Answer

Yes, sorry about that

paxpolaris · Answer

all right... we have a 30-60-90 triangle and one side.

do you know the ratios of the sides....

anonymous · Answer

no....

paxpolaris · Answer

do you know any trigonometry?

sin, cos, tan of a 30 degree angle?

anonymous · Answer

I know sin, cos, and tan

paxpolaris · Answer

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what's sin(30degrees)  ?

anonymous · Answer

sin 30degrees= opp/hyp

What should I call those?

paxpolaris · Answer

never mind .... 
can you see that your triangle above is half of an equilateral triangle...
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