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bazaltina [42]
2 years ago
10

On a map, the coordinates (2,-1) and (4,8) pass through the coordinates (1,3) and (6,2). Are they perpendicular

Mathematics
1 answer:
marusya05 [52]2 years ago
5 0

Answer:

Step-by-step explanation:

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the sum of the angles in a triangle = 180°, thus

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