Respuesta :

Because they are similar, the ratio of the sides are equal to each other. so, you would set up a ratio of 15/10 = x/12. the you would cross multiply and solve for x. making it 18.


Step-by-step explanation:


sqdancefan

Answer:

C. 18 cm

Step-by-step explanation:

Corresponding sides have the same ratio in similar triangles. The longest side is (12/10) = 1.2 times the length of the second-longest side. So ...

... x = 1.2 × 15 cm = 18 cm

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