Help!!!
In a ∆ABC, AD bisects angle A, AB = 12 cm, AC = 420 cm and BD = 5 cm. Determine CD.
Solve it ASAP!! Class 10th CBSE
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Answer:
An angle bisector of a triangle divides the opposite side into two segments that are proportional to the other two sides of the triangle.
AC/AB = CD/BD _(1)
AB=12cm
AC=20cm
BD=5cm
So (1) becomes 12/20 = 5/CD
CD= 5×20 upon
12
CD=8.33
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