GeoGebra Classroom

# Construction Of Parallelogram

Construct a parallelogram to be able to explore its properties by following the construction steps provided below.

## Instruction

 ﻿1. ﻿ ﻿Select the Line tool and create an arbitrary line AB by clicking twice in the Graphics View. ﻿2. ﻿ ﻿Create a line BC using the Line tool again. Hint: Select point B and then click in the Graphics View to create point C. ﻿3. ﻿ ﻿Activate the Parallel Line tool and create a parallel line to line AB through point C. Hint: Open the Toolbox of Special Lines, activate the Parallel Line tool and select the line AB and then point C. ﻿4. ﻿ ﻿Create a parallel line to line BC through point A using the Parallel Line tool again. ﻿5. ﻿ ﻿Select the Intersect tool and create the intersection point D of the two lines. Hint: Open the Toolbox of Points, activate the Intersect tool and click directly on the intersection point. ﻿6. ﻿ ﻿Activate the Polygon tool and create the parallelogram ABCD by successively selecting all the vertices. Note: To close your polygon, select the first point again. ﻿7. ﻿ ﻿Select the Move tool and drag the vertices of the parallelogram to check if it was constructed correctly.