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

3-94.

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

What is the area of Δ

*ABC*?Δ

*ABC*is rotated about the origin 180° to become Δ*A*′*B*′*C*′. Name the coordinates of*A*′,*B*′, and*C*′.This time Δ

*ABC*is rotated 180° about point*C*to form Δ*A*″*B*″*C*″. Name the coordinates of*B*″.If Δ

*ABC*is rotated 90° clockwise (↻) about the origin to form Δ*A*′′′*B*′′′*C*′′′, what are the coordinates of point*A*′′′?Use the eTool below to solve each part of the problem.

Click the link at right for the full version of the eTool: Int1 3-94 HW eTool.