standard_description: Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch).
problem_activity: Task
Three unit squares and two line segments connecting two pairs of
vertices are shown. What is the area of $\triangle ABC$?
[IMG]


aligns: yes