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What is the value of x? Note:images are not to scale

What is the value of x? Note:images are not to scale-example-1
User Popo Joe
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1 Answer

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since we know both triangles are similar then we can say that


\cfrac{TV}{QS}~~ = ~~\cfrac{TU}{QR}\implies \cfrac{x}{30}~~ = ~~\cfrac{13}{39}\implies 39x=390\implies x=\cfrac{390}{39}\implies \boxed{x=10}

User Weisk
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