Fluff2517 Fluff2517

21-03-2017
Mathematics

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in the figure, Line BD bisecte angle ABC.

what is the length of line DC

in the figure Line BD bisecte angle ABC what is the length of line DC class=

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ChandrikaP ChandrikaP

21-03-2017

BD is a angle bisector and Angle bisector theorem says
ratio of other sides of the triangle formed by bisector is equal
BA/AD=BC/CD
lets say AD is x so DC will be 4-x
3/x=4.5/4-x
x=1.6
AD=1.6units
so DC=4-x=4-1.6= 2.4 units

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