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shweta sharma

· started a discussion

· 1 Months ago

which is the property used here?

Question:
ABC is a triangle. The bisectors of the internal angle B and external angel ∠C intersect at ∠D. IF ∠BDC = 50º, then ∠A is?
Options:
A) 100º
B) 90º
C) 120º
D) 60º
Solution:
Ans. (a)


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