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ICSE Class 9 Answered

In triangle ABC the internal bisector of angle A and the external bisector of angle C intersect each other at point O . Prove that 2 angle AOC = angle B . 
Asked by alonesuvam.123 | 27 Dec, 2023, 08:40: PM
answered-by-expert Expert Answer

Let ABC be the triangle. Let internal bisector of img and external bisector of img meet at O as shown in figure.

img

img ......................... (1)

we know that

img

Hence , eqn.(1) can be written as

img

From above expression, we get

img

Answered by Thiyagarajan K | 27 Dec, 2023, 11:15: PM

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ICSE 9 - Maths
In triangle ABC the internal bisector of angle A and the external bisector of angle C intersect each other at point O . Prove that 2 angle AOC = angle B . 
Asked by alonesuvam.123 | 27 Dec, 2023, 08:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
ICSE 9 - Maths
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