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(1m)known x in each of the following diagramsnach of the following diagrams |
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Answer» i) sum of angles in a ∆ is 180°so 50° + 2x = 180°2x = 130°x = 65° ii) supplement of 110° is 70°supplement of 120° is 60°so x + 70° + 60° = 180°x = 180° - 130° = 50° iii) 2x + x + 90° = 180°3x = 90°x = 30° |
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