Verity that points P(-2, 2), Q(2, 2) and R(2.7) are vertices of a right angled
triangle.
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1 thought on “Verity that points P(-2, 2), Q(2, 2) and R(2.7) are vertices of a right angled<br />triangle.<br />​”

1. Step-by-step explanation:

   PQ= √(x2-x1)²+(y2-y1)²

   PQ=√(2+2)²+(2-2)²

   PQ=√(4)²+0²

   PQ=√16

   PQ=4

   QR=√(x3-x2)²+(y3-y2)²

   QR=√(2-2)²+(7-2)²

   QR=√0²+5²

   QR=√25

   QR=5

   PR=√(x3-x1)²+(y3-y1)²

   PR=√(2+2)²+(7-2)²

   PR=√4²+5²

   PR=√9²

   PR=√81

   PR=9

   .°. PR²=PQ²+QR²

   .°. PR²=4²+5²

   .°. PR²=9²

   °.° PR =9

   .°. it’s is proved the the points are vertices of a right angle triangle.

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