1) Plot the points ([b]type[/b] the ordered pair into the [b]input bar[/b], bottom of the page)[br][b]2) A(-4,2), B (-2,1) and C (-3, 3)[br][/b]3) [icon]https://www.geogebra.org/images/ggb/toolbar/mode_polygon.png[/icon]Use the polygon tool to construct the triangle ABC[br][b]4) Plot D (0,0)[br][/b]5) [icon]/images/ggb/toolbar/mode_rotatebyangle.png[/icon]Use the rotate around point tool (9th tool over, under the reflection diagram)[br]6) Select point D and then click on the center of Triangle ABC[br]7) Pop up Type in 90[br][br]
[color=#0000ff]When you're done (or if you're unsure of something), feel free to check by watching the quick silent screencast below the applet. [/color]
What are the coordinates of A'B'C'? [br]
A' (-2,-4)[br]B' (-1,-2)[br]C' (-3,-3)
1) Plot the points ([b]type[/b] the ordered pair into the [b]input bar[/b], bottom of the page)[br][b]2)A(-5,-2), B (-3,-1) and C (-2, -3)[br][/b]3)[icon]https://www.geogebra.org/images/ggb/toolbar/mode_polygon.png[/icon]Use the polygon tool to construct the triangle ABC[br][b]4)Plot D (0,0)[br][/b]5)[icon]https://www.geogebra.org/images/ggb/toolbar/mode_rotatebyangle.png[/icon]Use the rotate around point tool (9th tool over, under the reflection diagram)[br]6) Select point D and then click on the center of Triangle ABC[br]7) Pop up Type in 180
List the points of A"B" and C"
A" (5,2)[br]B" (3,1)[br]C" (2,3)
If a Triangle is in quadrant 2, and we rotated the pre-image 90 degrees which quadrant would its image be in?