When proving that a triangle is a right triangle using coordinate geometry methods you must

show that the slopes of two of the sides are negative reciprocals creating perpendicular lines and right angles

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show that the lengths of the sides satisfy the Pythagorean Theorem thus creating a right angle

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both choices 1 and 2 may be used

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neither choice 1 nor 2 may be used

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none of these

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Solution

The correct option is E both choices 1 and 2 may be used
Option C is correct.

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Similar questions

Q. An irrational number

\sqrt{n + 1}

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(i) Sides opposite to equal angles of a triangle may be unequal.

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6.1,

prove that a line drawn through the mid-point of one side of a triangle parallel to another side bisects the third side. (Recall that you have proved it in Class IX).

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When proving that a triangle is a right triangle using coordinate geometry methods you must

The correct option is E both choices 1 and 2 may be usedOption C is correct.

The correct option is E both choices 1 and 2 may be used
Option C is correct.