please solve 10th and 13th sums.
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13- in triangle BMC and CNB
BC=BC ( common)
angle BNC=CMB=90
angle NCB=NBC
hence both triangle congruent
by CPCT
BM=CN
BC=BC ( common)
angle BNC=CMB=90
angle NCB=NBC
hence both triangle congruent
by CPCT
BM=CN
abhi9941:
angle dac =dbc
angle acd = bcd
how dac=dbc
ac=bc by cpct
angle opp to equal side are equal
ok
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