In the given figure, if
= = BEC 120 DCE 25 , ,
then find
BAC
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8
1:∠BAC = ∠CDE (Angles in the segment of the circle)
In ΔCDE,
∠CEB = ∠CDE + ∠DCE (Exterior angles of the triangle)
⇒ 120° = ∠CDE + 25°
⇒ ∠CDE = 95°
Thus, ∠BAC = 95°
2:
∠BEC is exterior angle of △CDE
∴∠CDE + ∠DCE = ∠BEC
⇒∠CDE + 25° = 120°
⇒ ∠CDE = 95°
Answered by
13
Answer:
∠BAC=95°
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