*Two triangles are similar if their corresponding angles are congruent
Similar triangles – triangles that have the same corresponding angle measures, but are different in length
Corresponding angles means angles that match up.
Corresponding sides of similar triangles have the same ratios.
Similarly, you can find the scale factor for each set of triangles by finding how much larger or smaller a triangle is multiplied or divided by.
To find the missing side of similar triangles, you have to set up a proportion.
10/x = 6/12 (find the cross products)
(10)(12) = (x)(6) (simplify)
120 = 6x (divide each side by 6)
20 = x
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