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प्रश्न
In a ΔABC, right-angled at A, it is given that AB = AC, ∠C is equal to ______.
पर्याय
30°
45°
60°
90°
MCQ
रिकाम्या जागा भरा
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उत्तर
In a ΔABC, right-angled at A, it is given that AB = AC, ∠C is equal to 45°.
Explanation:
Since ΔABC is right-angled at A, angles B and C add to 90°.
AB = AC means the sides opposite angles C and B are equal, so angles B and C are equal.
Two equal angles that sum to 90° must each be 45°.
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