What do you observe? Make a conjecture about your observation.ġ2.) Click File>Save, and type centroid as the file name construction. A median of a triangle is a segment connecting the vertex to the midpoint of the opposite side.ġ1.) Use the Selection Arrow tool and move the vertices and segments of the triangle. Construct the line passing through each vertex and the midpoint of the opposite side of a. locating its midpoint first then constructing the perpendicular line through it. Click on Geometers Sketchpad in the left menu for information. Using the Selection arrow tool point at the line segment whose midpoint you. These segments are the median of the triangle. The Geometers Sketchpad, or similar application on a handheld device. In order to construct a midpoint you need to have a segment on your drawing. Now try the other two selection arrows and observe what happens.ħ.) To construct the midpoint, click segment AB (be sure that no point is selected), click the Construct menu from the Menu bar, and then click Midpoint.Ĩ.) Now, to construct the midpoints of BC and AC, select both segments (again with no point selected), click the Construct menu, and then click Midpoints.ĩ.) Now, to label the midpoints, select the text Text tool and then click the midpoints of AB, BC, and AC in that order.ġ0.) Next, select the Segment tool, and then construct AE, BF and CD. Click on ConstructMidpoint to find the midpoint of the segment. To drag the whole object, drag the across the entire construction to highlight all the objects, and then drag one of the objects. There were three Geometers Sketchpad files demod at the presentation: one for the. 5.) With the Segment tool still selected, construct segments BC and AC.Ħ.) To familiarize yourself with how dragging works in GSP, click the Selection tool (the Translate arrow) and drag the vertices, segments, and labels of the triangle. Now that you have a quadrilateral, recall the theorem youre exploring. 559, 560 with Geometer's Sketchpad, B-13 midpoint of, 567 constructing with Geometer's Sketchpad, B-9 formula for, 788790 perpendicular bisector of.
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