Respuesta:
Clave e) 14
Explicación paso a paso:
Teorema de tales:
3a/5a = 21/(21+x)
3/5 = 21/(21+x)
63 + 3x = 105
3x = 105 - 63
3x = 42
x = 14
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Respuesta:
Clave e) 14
Explicación paso a paso:
Teorema de tales:
3a/5a = 21/(21+x)
3/5 = 21/(21+x)
63 + 3x = 105
3x = 105 - 63
3x = 42
x = 14
Clave e) 14