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Home > CC4 > Chapter 3 > Lesson 3.2.2 > Problem 3-94


Plot ΔABC on graph paper with vertices A(8, –4), B(8, 1), and C(2, 0). 3-94 HW eTool (Desmos) Homework Help ✎

  1. What is the area of ΔABC?

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

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

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

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