Click on the blue points and drag them to change the figure.|
Use the grid lines to find 90 degrees, 180 degrees, and so on. How many non-oblique angles are there in 360 degrees?
|Manipulative 1 - Oblique Angle Created with GeoGebra.|
Click on the blue points and drag them to change the figure. Use the grid as a guide for making parallel and perpendicular lines.|
When are the lines oblique? When are the lines not oblique?
|Manipulative 2 - Oblique Lines Created with GeoGebra.|
Click on the blue point and drag it to change the figure.|
When is the figure oblique? When is the figure not oblique?
|Manipulative 3 - Oblique Figure Created with GeoGebra.|
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