Assignment 1: the Centroid of a Triangle Definition of the Median

Assignment 1: the Centroid of a Triangle Definition of the Median

Assignment 1: The Centroid of a Triangle Definition of the Median and Centroid of a Triangle: A line joining a vertex of a triangle to the midpoint of the opposite side is called a median of the triangle. The point where the three medians meet is called the centroid. Using the digital geoboards (https://apps.mathlearningcenter.org/geoboard/) construct the centroids of the following triangles. A(2,4), B(8,8), C(14,0) A(2,1), B(4,7), C(12,1) A(2,1), B(6,7), C(12,3) In each find the ratio in which the centroid divides the median of the triangles. Justify your findings. Assignment 2: Internal division of a line segment Section 1: Finding the ratio m:n Use the digital geoboard to construct the following line segments and determine the ratio in which the decision point divides the line internally. Given A(2,5) and B(11,5), find the ratio in which the point (6,5) divides the line segment [AB] Given A(6,1) and B(6,8), find the ratio in which the point (6,5) divides the line segment [AB] Given A(2,6) and B(12,1), find the ratio in which the point (6,4) divides the line segment [AB] Given A(2,3) and B(12,8), find the ratio in which the point (6,5) divides the line segment [AB] Given A(1,8) and B(13,2), find the ratio in which the point (10,3.5) divides the line segment [AB] Section 2: Finding the coordinates of the division point Use the digital geoboard to construct the following line segments and determine the coordinate of the point that divides the line segment in a given ratio. Given that A(1,7) and B(13,7), find the point that divides [AB] in the ratio 5:1 Given that A(6,7) and B(6,1), find the point that divides [AB] in the ratio 1:2 Given that A(1,9) and B(9,1), find the point that divides [AB] in the ratio 3:1 Given that A(3,2) and B(13,7), find the point that divides [AB] in the ratio 2:3 Given that A(10,8) and B(13,0), find the point that divides [AB] in the ratio 1:3 .

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