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प्रश्न
Find the value of the unknown x in the following diagram:
उत्तर
The sum of all interior angles of a triangle is 180°. By using this property, these problems can be solved as follows:
50° + x + x = 180°
50° + 2x = 180°
2x = 180° − 50°
2x = 130°
x = `(130°)/2`
x = 65°
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