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Home > CC4 > Chapter 3 > Lesson 3.3.2 > Problem 3-129

3-129.

Plot ΔABC on graph paper if A(6, 3), B(2, 1), and C(5, 7). 3-129 HW eTool (Desmos) Homework Help ✎.

  1. ΔABC is rotated about the origin 180° to become ΔABC′. Name the coordinates of A′, B′, and C′.

  2. This time ΔABC is rotated 180° about point C to form ΔABC″. Name the coordinates of B″.

  3. If ΔABC is rotated 90° clockwise (↻) about the origin to form ΔA′′′B′′′C′′′, what are the coordinates of point A′′′?

Use the eTool below to graph and rotate triangle ABC.
Click the link at right for the full version of the eTool: Int1 3-129 HW eTool