Category: 10. Geometric formulas

  • Common geometry formulas 

    Here, we provide you with common geometry formulas for some basic shapes Rectangle: Perimeter = l + l + w + w = 2 × l + 2 × w Area = l × w Square: Perimeter = s + s + s + s = 4 × s Area = s2 Parallelogram: Perimeter =…

  • How to Find an Endpoint

    Learn how to find an endpoint using the midpoint of a segment with a couple of good examples. Example #1: The midpoint of a segment is M(2, 3). One endpoint is A(-2, -1). Find the other coordinates of the other endpoint B. Use the midpoint formula M[(x1 + x2)/2, (y1 + y2)/2] and let the coordinates of B be…

  • Midpoint of a line segment

    To find the midpoint of a line segment on the coordinate system, simply take the average of the x-coordinates and the average of the y-coordinates. Let (x1 , y1) and (x2 , y2) represent the endpoints of a line segment. Therefore, the formula to get the midpoint is: [(x1 + x2) ÷ 2 , (y1 + y2) ÷ 2]…

  • Centroid of a triangle

    The centroid of a triangle is the point where the three medians of a triangle meet or intersect. An illustration of the centroid is shown below. In the above graph, we call each line (in blue) a median of the triangle. The median is the line that starts from a vertex and goes to the…

  • Formula for distance

    Given two points (x1, y1), (x2, y2) the formula for distance is calculated with the following formula.   __________________ Distance = √  (x1 – x2)2 + (y1 – y2)2   Example #1: Use the distance formula to find the distance between (2,3) and (6,6) Let (x1, y1) = (2,3) Let (x2, y2) = (6,6)   ________________ Distance = √…