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Need help with this. A B C D
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Need help with this.

A B C D

Need help with this. A B C D-example-1
User Valla
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1 Answer

8 votes

Answer:

yes, it is a right triangle and ∡Q is the right angle

Explanation:

if the slope of QR is the opposite reciprocal of QS then the two segments are perpendicular and form a 90° angle

slope of QR: -3 - (-1) ÷ 2 - 0 = -2 ÷ 2 = -1

slope of QS: -3 - (-1) ÷ 2 - 4 = -2 ÷ -2 = 1

-1 and 1 are opposite and reciprocal so m∡Q = 90°

User Augustus Kling
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