that is the height of the triangle
The point of a triangle is called a vertex, same goes with rectangles and all other shapes with points.
No because perpendicular goes up and down
It is a line that goes through the vertex of the angle and divides the original angle into halves.
Circumcenter - the center of the circle that circumscribes the triangle, ie. goes through all its vertices.
it's basically a right angle that goes on and on and on ,but in the back:
Every triangle has three medians, just like it has three altitudes, angle bisectors, and perpendicular bisectors. The medians of a triangle are the segments drawn from the vertices to the midpoints of the opposite sides. The point of intersection of all three medians is called the centroid of the triangle. The centroid of a triangle is twice as far from a given vertex than it is from the midpoint to which the median from that vertex goes. For example, if a median is drawn from vertex A to midpoint M through centroid C, the length of AC is twice the length of CM. The centroid is 2/3 of the way from a given vertex to the opposite midpoint. The centroid is always on the interior of the triangle.
The point of a triangle is called a vertex, same goes with rectangles and all other shapes with points.
Draw a line perpendicular to the horizon axis, that goes from the top vertex, to a line that is the continuation of the base.
The perpendicular bisector of ANY chord of the circle goes through the center. Each side of a triangle mentioned would be a chord of the circle therefore it is true that the perpendicular bisectors of each side intersect at the center.
If by "opposites of each other" as regards the slope of the legs you mean of opposite sign, the answer is yes. Let's look. Slope is the change in y divided by the change in x, or the "rise over the run" as is sometimes said. For any given isosceles triangle with the base on the x-axis, as regards the legs or sides, each side will have an identical change in x for any change in y, except for the sign. For the "left" leg of the triangle, that leg is slanted so that it goes to the right and up to get to the vertex. The "right" leg goes up and to the left to get to the vertex. The net result is that for any change in y, it turns out that both legs will experience the same change in x, but in the opposite direction. This results in opposite signs for changes in x value, and the slopes will have the same numerical value (or absolute value) by be opposite in sign.
Yes! You can actually show five lines of symmetry. Each one goes from the vertex to the midpoint of the opposite side.
It is called a diagonal and goes from any vertex to the next-but-one vertex.
No because perpendicular goes up and down
None. By definition a diagonal goes from one vertex to another vertex and so each diagonal MUST have two vertices.
The diagonal of a square is not perpendicular to its side. The diagonal of a square will separate the square into two triangles. The diagonal goes from one corner to the opposite corner. Because it is a square, the diagonal and a side of the square will always form a 45-degree angle.
A perpendicular bisector goes through the median of the line while a perpendicular line can be anywhere on the line as long as it is at a 90 degree angle.
Neil South goes by Vertex.