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Question
if ( lq = 24 ), find ( qp ).
Step1: 重心性质
三角形三条中线交于一点,这点叫重心,重心到顶点的距离是它到对边中点距离的\(2\)倍。
Step2: 计算\(QP\)
已知\(LQ = 24\),因为\(Q\)是重心,\(LQ\)与\(QP\)存在\(LQ = 2QP\)的关系。
则\(QP=\frac{LQ}{2}\)。
将\(LQ = 24\)代入\(QP=\frac{LQ}{2}\),可得\(QP=\frac{24}{2}=12\)。
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\(12\)