Question

in triangle ABC's,if ad is the bisector of angle A then value of angle ADB is if b=45° c=55°​

Answer 1

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Here is your answer

$a + b + c = 180$

$45 + 55 + a = 180$

$105 + a = 180$

$a = 180 - 105$

$a = 75$

Hence the angle a=75

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Answer 2

Here's the solution to your given problem