Find the probability that a point chosen at random inside the large triangle is in the small triangle. Enter your answer in simplified fraction form; example: 3/20.

Question

anonymous · Answer

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anonymous · Answer

I really just need to know how to find the area of this triangle, since hte height isn't given..

anonymous · Answer

Have you learned about special rights or trig yet?

anonymous · Answer

You shouldn't need to find the area. You could, but I don't think you would need to. You can find the height like this|dw:1410047360197:dw|

anonymous · Answer

Nope. I know how to do this actual problem once I can find the area of the triangle, though.

anonymous · Answer

Do you know that equilateral triangles have 60 degrees for each angle?

anonymous · Answer

you can find the height by 7.5^2+x^2=15^2

anonymous · Answer

You could but that is not how it is taught in geometry ^

anonymous · Answer

Never mind just use that it's easier. You'll learn the other way later.

anonymous · Answer

This is algebra technically, but geometric probability. If that will get me the right answer, then I don't need to get too technical about it

anonymous · Answer

:)

anonymous · Answer

I also need to find the area of the smaller triangle.. Would it be 2^2+x^2=4^2?

anonymous · Answer

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