in the adjoning figure ,ad is bisector of angle BAC .if ab=6cm,ac=4cm and bd=3cm.find bc
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Answered by
0
Answer:
DC=1.472
Step-by-step explanation:
Use pythogorus theorem
Answered by
1
Step-by-step explanation:
Here we can see that
∠BAC
is bisected by AD where AD touches BC at D.
BC=BD+DC,
BC=3cm
also given the adjasent sides ,
AB=6cm. and AC = 5cm.
from angle bisector theorem ,
it satisfied that,
AB/BD = AC}{DC} \:
BD
AB
=
DC
AC
\begin{gathered}DC= \frac{AC \times BD}{AB} \\ = \frac{5 \times 3}{6} \\ = 2.5cm \: \end{gathered}
DC=
AB
AC×BD
=
6
5×3
=2.5cm
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