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Calculate the measure of each lettered angle in the following figure (parallel lines,segment or rays are denoted by thick matching rows) |
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Answer» Here,c=72°[ALTERNATE interior ANGLES are equal]→b+c+55°=180(LINEAR pair is equal to 180)→b+72+55=180→b+127=180→b=53°→a+b+c=180(sum angle PROPERTY is 180)→a+53+72=180→a+125=180→a=55° |
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