将AD延长与BC交于E
根据角平分线性质
AB/AC=BE/CE=10/16=5/8
BE=5/8CE=5/8(BC-BE)
BE=5/13BC
BM=1/2BC
BM-BE=(1/2-5/13)BC
EM=3/26BC
EM=3/13MC
MC/EM=13/3
EC/EM=16/3
EC/EM=AC/DM
16/DM=16/3
DM=3
将AD延长与BC交于E
根据角平分线性质
AB/AC=BE/CE=10/16=5/8
BE=5/8CE=5/8(BC-BE)
BE=5/13BC
BM=1/2BC
BM-BE=(1/2-5/13)BC
EM=3/26BC
EM=3/13MC
MC/EM=13/3
EC/EM=16/3
EC/EM=AC/DM
16/DM=16/3
DM=3