### Home > GC > Chapter 8 > Lesson 8.1.2 > Problem 8-19

8-19.

Crystal is amazed! She graphed Δ*ABC* using the points *A*(5, −1), *B*(3, −7), and *C*(6, −2). Then she rotated Δ*ABC* 90° counterclockwise (*A′B′C′*. Meanwhile, her teammate took a different triangle (*ΔTUV*) and rotated it 90° clockwise (*T′U′V′*. Amazingly, Δ*A′B′C′* and Δ*T′U′V′* ended up using exactly the same points! Name the coordinates of the vertices of Δ*TUV*.Homework Help ✎

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