What is the line on a triangle called?
A median of a triangle is a straight line through a vertex and the midpoint of the opposite side, and divides the triangle into two equal areas. The three medians intersect in a single point, the triangle’s centroid or geometric barycenter, usually denoted by G.
How do you find the line of symmetry?
You can find the line of symmetry graphically or algebraically. To find the line of symmetry graphically, find the vertex, or the farthest point where two lines connect, and write either x = or y = and then insert the x- or y-coordinate.
What does one line on a triangle mean?
Little tick marks are used to show that two sides are the same length (congruent). You can use just one tick mark, two or three or more — just as long as you use the same number on sides that are equal.
What do 2 lines on a triangle mean?
An isosceles triangle has 2 sides of equal length. The dashes on the lines show they are equal in length. The angles at the base of the equal sides are equal. An equilateral triangle has 3 sides of equal length. The dashes on the lines show they are equal in length.
What is an example of a line of symmetry?
For example, if we cut an apple in two equal halves, then the piece of apple is said to be in symmetry with another. One more good example is to imagine if we cut an equilateral triangle into two equal halves, then the two triangles formed after the intersection is the right-angled triangles.
What is meant by line of symmetry?
A line of symmetry is a line that cuts a shape exactly in half. This means that if you were to fold the shape along the line, both halves would match exactly. An equilateral triangle has 3 lines of symmetry.
How many lines of symmetries are there in a regular pentagon?
5 lines of symmetry
A regular pentagon has 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides.