Quadrilateral 2
Show that the quadrilateral with vertices P1(0,1), P2(4,2), P3(3,6) P4(-5,4) has two right triangles.
Correct answer:

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You need to know the following knowledge to solve this word math problem:
- geometry
- analytic geometry
- planimetrics
- Pythagorean theorem
- right triangle
- triangle
- trapezoid
- rhombus
- diagonal
- rectangle
- parallelogram
- quadrilateral
Units of physical quantities:
Grade of the word problem:
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