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12 questions from this quiz
The straight-line distance
(x2−x1)2+(y2−y1)2\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}(x2−x1)2+(y2−y1)2
Pythagorean theorem
∣x2−x1∣|x_2 - x_1|∣x2−x1∣
Take the square root
34\sqrt{34}34
34
Same distance from both points
58\sqrt{58}58
k = 2 or k = 4
9
Proving triangles are isosceles
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