Geometry Question for Title 1 Schools: Straight Line Angle Question?5) What is the value of an angle of the rest of a straight line that has an angle of 135^{o} ? The total angle on a straight line = 180^{o}
If part of the total angle on a line is already 135^{o} , then the rest must be 180^{o}  135^{o} = 45^{o}

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