Congruent and Similar Triangles in the Coordinate Plane Answers

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The vertices of triangle RST are R(–4,4) S(5,4), and T(–1,–5). If ΔLMN is similar to ΔRST and , which could be the coordinates of vertices L and M?

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Triangle DEF is congruent to right triangle GHI with a right angle at vertex H. If the slope of DE is –2, what must be true?

The vertices of triangle ABC are A(2,3), B(–1,2), and C(3,1). If ΔDEF ∼ ΔABC and DE = 4AB, what is the length of EF?

The vertices of ΔRST are R(–1,–1), S(–1,11) and T(4,11). Which could be the side lengths of a triangle that is similar but not congruent to ΔRST?

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The vertices of triangle RST are R(–1,–2), S(2,–1), and T(4,2). If ΔJKL ∼ ΔRST and the length of KL is units , what is the length of JK?

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