Parallel lines. The parallel lines represent two or more straight line with the same line, the distance between which is a long drawn out much longer at the end: However, it was not found. In addition, the curve is parallel. Called curve. '' Two straight lines parallel to each other when the two straight lines. Equal distances from each other and use the symbol "//" instead of a straight line, parallel to the straight line parallel with ron วย, because equal distances from each other. To prove that two straight lines equal distances from each other. The following steps are.Step 1 assign points on a straight line, which is at least 2 in the position, given its relatively late on the left and on the right path at each position.Step 2 make a scene at a given point.Step 3 draw right-angledStep 3 using a ruler to measure the drag is edged with the same length or not. If it only shows that the two parallel straight lines. Triangle (American English: triangle) is one of the basic shapes in geometry: a polygon with 3. Corner or vertex and has 3 sides or edges which are straight-line portion of the triangle with vertices A, B, and C programming instead of ABC.At any point, 3-point, Euclid geometry that is not in the same straight line can create a triangle has only one picture and an address on a single plane (two-dimensional plane.)Dividing line in half perpendicular (perpendicular bisector) is a straight line drawn through the middle of the sides and perpendicular to the side, that is, the angle of the scene. Half of the three perpendicular divider line will meet at a single point is central to encircle (circumcenter) of a triangle. This point is the center point of the circle around (the circumcircle) Which is a circle drawn through all three vertices? Diameter of a circle can be found from the design rules mentioned in the above.Panda's League's theorem (Thales ' theorem) says that if the center circle around on one side of the triangle. The angle opposite the side that edged In addition, if the center circle around in the triangle. A triangle is a triangle angle. If you encircle Center outside the triangle. A triangle is a triangle corners not sharp. The intersection of the altitudes is the pentagonal Centre.Height (altitude) of the triangle is a straight line drawn through a vertex and perpendicular (right angle angle) on the opposite side is called the opposite base (base) of the height and the height to the base (or extends) is called the foot (foot) high section. The length of the height is the distance between the base vertex. Three height to cut at one point. Get the point, the pentagonal Centre (orthocenter) of the triangle. Pentagonal point Centre is located in the triangle, the triangle is a triangle corners not sharp. The three vertexes and points system is in pentagonal Centre pentagonal sensors, click click (orthocentric system) Intersections of lines divide the half angle. Find the center of the InCircleHalf breaks the angle (the angle bisector) is a straight line drawn through the vertex, which divides the angle into half. Half of the three corner breaks are cut at a single point is the center of the InCircle (incircle) of the triangle InCircle is a circle in a triangle, and the three sides touch. There are three important circles: excircles (excircle) is a circle outside the triangle and touches on the one side and the part that extends out to both. The center of the InCircle and excircles are pentagonal sensors, click. Centroid of zero gravityMedian (median) of a triangle is a straight line drawn through a vertex and the midpoint of the opposite side, which are broken down into a triangle of equal area. Median, all three are cut off at one point, centroid (centroid) of a triangle. This will point to zero gravity (center of gravity) of the triangle. If there is a wood that is a triangle, you can make it balanced its sensors or any line of Troy, dragging through the centroid. The median divides the centroid with ratio 2: 1, that is, the distance between a vertex and the centroid is twice the distance between the centroid to the midpoint of the opposite side. The nine-point circle. Show the symmetry point of six points on the same circle.The center of the three side and foot of height, all three will reside on the same circle — a circle of nine points (nine point circle) of the triangle the three remaining point is the midpoint between a vertex with a pentagonal point Centre, which is part of the height. Radius of the nine-point circle is half the radius of the circle; It will touch the InCircle (at the Feuerbach point) and excircles touch. Euler line is a line drawn through the centroid (yellow), Pentagonal handles Centre (blue), Encircle Center (green) and center of the nine-point circle (red). Centroid (yellow), Pentagonal handles Centre (blue), Encircle Center (green) and center of the nine-point circle (red point) all are located on the same line, called the Euler (Euler line) (red line) in the center of the nine-point circle is located midway between the centre point of the pentagonal encircle Center. The distance between the centroid to encircle Center is half the distance between the centroid point pentagonal Centre.The center of the InCircle is generally not on Euler.Reflection of the median divider line half-angle of the same vertex. All three are so-called waterproof wrap symmedian symmedian point symmedian point is (symmedian point) of a triangle.
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