poly/zeros

4. Suppose a triangle had two right angles. They would sum to 180(. This would mean the third “angle” would be 0( which is not possible. So a triangle can’t have more than one right angle. 5. Suppose there are two different lines, and through P perpendicular to l. Then (1+ (APB + (2 = 180( (straight line). But (1 + (2 = 180( (both right ... ................
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