### Home > CC4 > Chapter 10 > Lesson 10.1.1 > Problem 10-13

10-13.

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 (↺) about the origin to find Δ*A*′*B*′*C*′. Meanwhile, her teammate took a different triangle (Δ*TUV*) and rotated it 90° clockwise (↻) about the origin to find Δ*T*′*U*′*V*′. Amazingly, Δ*A*′*B*′*C*′ and Δ*T*′*U*′*V*′ ended up having exactly the same points! Name the coordinates of the vertices of Δ*TUV*. *10-13 HW eTool** *(Desmos). Homework Help ✎

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