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Need help solving math problem......


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If the triangles are similar then the sides of the triangles are related to each other as ratios. You know the angles are the same because they are similar, now you set up the equation and solve.

 

In your example:

 

Triangle A Side 1/ Triangle A Side 2 = Triangle B Side 1/Triangle B side 2

 

4/6 = 8/x (The side that is 4 units corresponds to the side that is 8 units. The side that is 6 units corresponds to the side that is x units.)

 

Then you solve for x.

 

Cross Multiply and get 4(x) = 6(8)

4x = 48

divide both sides by 4

and get x=12

 

Now you know the missing length is 12, which makes sense because all the sides in Triangle B are twice as long as the sides in Triangle A.

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