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GeoGebraGeoGebra Classroom

Exercise: Parallelogram Construction

Task: Construct a parallelogram by following the construction steps provided below.
1.Toolbar ImageSelect the Line tool and create an arbitrary line AB by clicking twice in the Graphics View.
2.Toolbar ImageCreate a line BC. Hint: Select point B and then click in the Graphics View in order to create point C.
3.Toolbar ImageActivate the Parallel Line tool and create a parallel line to line AB through point C. Hint: Select the line AB and then point C.
4.Toolbar ImageCreate a parallel line to line BC through point A.
5.Toolbar ImageSelect the Intersect tool and create the intersection point D of the two lines. Hint: Click directly on the intersection point.
6.Toolbar ImageActivate the Polygon tool and create the parallelogram ABCD by successively selecting all the vertices. Note: In order to close your polygon, select the first point again.
7.Toolbar ImageSelect the Move tool and drag the vertices of the parallelogram to check if it was constructed correctly.