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Question

In an isosceles ABC, AB=AC and BAC=30. Find the remaining angles.


A
ABC=30 and ACB=120
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B
ABC=60 and ACB=90
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C
ABC=ACB=60
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D
ABC=ACB=75
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Solution

The correct option is D ABC=ACB=75
Given, ABC is isosceles with AB=AC.
ABC=ACB=θ

According to angle sum property,
30+θ+θ=180
θ=75

Hence, the remaining angles are:
ABC=ACB=75

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