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Question
In Fig. 4.60, AD bisects ∠A, AB = 12 cm, AC = 20 cm and BD = 5 cm, determine CD.
In Fig. 4.60, AD bisects ∠A, AB = 12 cm, AC = 20 cm and BD = 5 cm, determine CD.
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Solution
It is given that 
bisect 
. Also, 
, 
and 
.
We have to find 
.
Since is the bisector of
Then 
, because Angle Bisector of a triangles divides the opposite side in two parts proportional to other two sides of a triangle.
Hence 
It is given that bisect . Also, , and .
We have to find .
Since is the bisector of
Then , because Angle Bisector of a triangles divides the opposite side in two parts proportional to other two sides of a triangle.
Hence
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12
