We can apply the area of a right triangle formula using side lengths. If the squares of the smaller two distances equal the square of the largest distance, then these points are the vertices of a right triangle (by the Pythagoras theorem). How Do You Find the Area of a Right-Angled Triangle Using Coordinates?įirst, we use the distance formula to calculate the length of each side of the triangle. Distance formula can be used to find the length of any side given the coordinates of the triangle's vertices. The distance formula is used to find the length of a triangle using coordinates. How Do You Find the Length of Side of a Triangle Using Coordinates? The formula of area of triangle formula in coordinate geometry is: A = (1/2) |x 1(y 2 − y 3) + x 2(y 3 − y 1) + x 3(y 1 − y 2)|, where (x 1,y 1),(x 2,y 2), and (x 3,y 3) are the coordinates of vertices of the triangle.
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