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M and N are points on sides AC and BC re...

M and N are points on sides AC and BC respectively of a `triangleABC`. State whether MN||BC` if CM = 4.2 cm, MA= 2.8 cm , NB = 3.6 cm, CN = 5.7 cm.

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M and N are points on the sides AC and BC respectively of a Delta ABC . In ech of the fopllowing cases, state whether MN||AB . (i) CM=4.2 cm. MA=2.8cm, NB=3.6 cm, 5.7 (ii) CB=6.92cm, CN=1.04 cm, Ca=1.73 cm, CM= 0.26cm (iii) CM=5.1 cm, CA=6.8 cm, CB=5.6 cm, NB=1.4 cm .

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Knowledge Check

  • In DeltaABC D and E are the points on sides AB and AC, respectively, such that DE || BC. If AD = 4 cm, BC = 5 cm. DC = 10 cm and AB = 15 cm. then the sum of the lengths of DE and EC is:

    A
    A. 20 cm
    B
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    C
    C. 21 cm
    D
    D. 18 cm

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    D and E are points on the sides AB and AC respectively of a triangle ABC such that DE||BC (i) If AD=3.6cm , AB=10cm and AE=4.5cm, find EC and AC . (ii) If AB=13.3cm , AC=11.9cm and EC=5.1cm, " find AD (iii) If (AD)/(DB)=(4)/(7) and AC=6.6cm find AE (iv) If (AD)/(AB)=(8)/(15) and EC=3.5cm find AE

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