Question

ayudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa por favor necesito la medida

Answer 1

Explicación paso a paso:

Los lados son proporcinales.

$\: \:\:\:\frac{AD}{AB} = \frac{HE }{EF}$

Reemplazando datos o valores.

$\frac{3.5\:cm}{5.2\:cm} = \frac{10.5\:cm}{x} \\ \\ 3.5x\:cm = (10.5\:cm)(5.2\:cm) \\ x = \frac{54.6\:{cm}^{2}}{3.5\:cm} \\ \boxed{ x = 15.6\:cm}$