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ABC is a right angle of an isosceles triangle ∆ABC. BD is perpendicular to AC. Which of the following if any is not a 45° angle?
ABC is a right angle of an isosceles triangle ∆ABC. BD is perpendicular to AC. Which of the following if any is not a 45° angle?
- ক. ∠BAD
- খ. ∠BCD
- গ. ∠CBD
- ঘ. ∠ABD
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