Respuesta :

M -- mid - point of PQ ; PM = MQ ; MQ = PM = [tex] \frac{PQ}{2} [/tex]

N -- mid - point of MQ ; MN = NQ ; MN = NQ = [tex] \frac{MQ}{2} [/tex]

L -- mid - point of MN ; ML = LN ; ML = LN = [tex] \frac{MN}{2} [/tex]

PQ = 24

MQ = [tex] \frac{PQ}{2} = \frac{24}{2} = 12 [/tex] = PM

MN = [tex] \frac{MQ}{2} = \frac{12}{2} = 6[/tex] = NQ

ML = [tex] \frac{MN}{2} = \frac{6}{2} = 3[/tex] = LN

Hence, 

LQ = LN + NQ = 3 + 6 = 9

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