मराठी

In a ΔABC, AD is the bisector of ∠A. If AB = 6.4 cm, AC = 8 cm and BD = 5.6 cm, find DC.

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प्रश्न

In a ΔABC, AD is the bisector of ∠A. If AB = 6.4 cm, AC = 8 cm and BD = 5.6 cm, find DC. 

 

बेरीज
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उत्तर

It is give that AD bisects ∠A.
Applying angle – bisector theorem in Δ ABC, we get:
`(BD)/(DC)=(AB)/(AC)`
⟹`(5.6)/(DC)=6.4/8`
⟹DC `=(8xx5.6)/6.4=7cm`

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पाठ 7: Triangles - EXERCISE 7A [पृष्ठ ३७२]

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आर. एस. अग्रवाल Mathematics [English] Class 10
पाठ 7 Triangles
EXERCISE 7A | Q 4. (i) | पृष्ठ ३७२
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