### Home > INT2 > Chapter 3 > Lesson 3.1.5 > Problem3-57

3-57.

On graph paper, draw $ΔABC$ with vertices $A(3,2)$, $B(-1,4)$, and $C(0,-2)$. .

1. Calculate the perimeter of $ΔABC$.

$\sqrt{20} + 5 + \sqrt{37} \approx 15.55 \text{ units}$

2. Dilate $ΔABC$ from the origin by a factor of $2$ to create $ΔA′B′C′$. What is the perimeter of $ΔA′B′C′$?

3. If $ΔABC$ is rotated $90^\circ$ clockwise ($↻$) about the origin to form $ΔA^{\prime\prime}B^{\prime\prime}C^{\prime\prime}$, name the coordinates of $C^{\prime\prime}$.

Use the eTool below to solve the parts of the problem.
Click on the link at right for the full eTool version: INT2 3-57 HW eTool