Nine points are arranged in a 3 x 3 grid, as shown below. In how many different ways can you choose three points, so that they form a right isosceles triangle?
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Based on the 3 x 3 grid given, the number of ways that three points can be chosen to form triangles is 28 ways.
Given that there are 9 points on the grod, a triangle could be formed using 3 grids, 4 grids, and 6 grids.
When these triangles are drawn - as shown in the attached picture - 28 triangles are formed.
In conclusion, there are 28 ways to form a triangle from the 3 x 3 grid.
Find out more on forming shapes in grids at https://brainly.com/question/15834087.
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