Just wondering if I am correct on the format I am doing for such question.

Find x

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Question

Just wondering if I am correct on the format I am doing for such question.

Find x

(DRAWING WILL BE INSERTED)

Please wait about a minute

anonymous · Answer

|dw:1424726062453:dw|

anonymous · Answer

I am thinking that I would have to do half of 41 - which is 20.5 - to get my answer.. Am I correct?

anonymous · Answer

@perl

anonymous · Answer

@phi

anonymous · Answer

Anyone?

phi · Answer

yes, the "big" (outer triangle) is similar to the smaller top triangle.
in this case the smaller triangle's sides are exactly 1/2 the size of the outer, big triangle.  that means x is 1/2 of the corresponding side, so 1/2 of 41

anonymous · Answer

Oh ok! Thank you! And how about one that would have a 3x instead of an x and a 54 instead of a 41?

anonymous · Answer

Would I make them equal to each other, with the 54 being divided by two?

anonymous · Answer

$$3x=1/2 (54)$$

Would this be correct?

anonymous · Answer

It still asking me to find x

phi · Answer

yes, if its the same kind of triangles.
3x = 27
divide both sides by 3
3/3 x = 27/3
x = 9

anonymous · Answer

Ok, Thank you so much!!!