Find x if (3x + 15)° and (2x + 30)° are vertically opposite angles.

Type: MCQ • Marks: 1

A. 45°

B. 15°

C. 10°

D. 30°

Explanation

Vertically opposite angles are equal: 3x + 15 = 2x + 30 => x = 15°.

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Class 7th Ganita Prakash 1

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