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Calculate the scale factor from the smaller triangle to the larger triangle (picture above,please help)

Calculate the scale factor from the smaller triangle to the larger triangle (picture-example-1
User Jtimberman
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x=12 and y=40. If you divide 20 by 50 you get 2.5 which is the scale factor.  To find the values of x and y you need to either multiply or divide 2.5 from the given values.
User Hossam Ali
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