I am not sure if this is a GRE question. And please follow the rules of posting question.

The first triangle and the second triangle are similar. Both of them are right triangle and both the triangles have one angle equal to \(x\) degrees.

We can say that:

In triangle 1 we have hypotenuse=\(\sqrt{3^2 + 4^2}=5\) .

height of triangle 1/ height of triangle 2 = hypotenuse of triangle 1/ hypotenuse of triangle 2.

\(\frac{10}{4}=\frac{m}{5}\) so \(m=12.5\).

Hence option B is greater.

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Sandy

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