# Vertices of a triangle

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How many triangles can you make with 9 sticks? Kids can reinforce geometry and critical thinking skills through creating various shapes with sticks.

Fostering Geometric Thinking - perimeter problem. Two vertices of a triangle are located at (4, 0) and (8, 0) on a coordinate grid. The perimeter of the triangle is 12 units. What are all possible positions for the third vertex?

Shape monsters---can incorporate shapes, vertices and adjectives all in one. Have the kids create their shape monster then describe it using math vocabulary and afjectives

Topic for January 20, 2014: Getting the coordinates of the vertices of a triangle if the midpoints of the sides are given. Please visit the website to see the details. Thanks and have a nice day to everyone. If you have any questions, please send me an e-mail.

Topic for January 15, 2014: Solving for the value of x at one of the vertices of a triangle if its area is given. Please visit the website to see the details. Thanks and have a nice day to everyone. If you have any questions, please send me an e-mail.

This around the world (also known as a scavenger hunt) has 12 problems. There are three types of problems. The first is finding the perimeter of a polygon given the coordinates of the vertices. The second if finding the area of a right triangle, square, or rectangle given the coordinates of the vertices.

Cevian Triangles - A cevian is a segment drawn from a vertex of a triangle to the opposite side. In this case the point on the opposite side is a trisection point. These cevians create seven triangles, and each triangle has an area that is a multiple of 1/21 of the area of the original triangle. Can you find the area of each region?

The centroid of a Triangle is the centre of the triangle, which is the point of intersection of all the three medians of a triangle. If we have an object, then we can say that the centroid of that object is its centre. The centroid of the triangle separates the median in the ratio 2:1. The centroid of a triangle can be got by finding the average of the x-coordinate’s value and the average of the y-coordinate’s value of all the vertices of the triangle.