What does one line mean on a triangle?

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.

Can you name a triangle which has exactly one line of symmetry?

An isosceles triangle has one line of symmetry.

What triangle can you not draw?

An obtuse triangle has one angle measuring more than 90º but less than 180º (an obtuse angle). It is not possible to draw a triangle with more than one obtuse angle. Note: It is possible for an obtuse triangle to also be scalene or isosceles.

Which shape has exactly one line symmetry?

Trapezium. A trapezium has rotational symmetry of order one. Some trapeziums have one line of symmetry. They are called isosceles trapeziums as they have 2 sides of an equal length like isosceles triangles.

Do triangles have to have straight sides?

After all the criteria for a triangle is 3 straight line segments, 3 vertices, the sum of the angles of each vertex is 180 degrees and that the shape lies on a flat plane, i.e. it is two-dimensional. The geometry that we learn about in primary school is largely euclidean and this is where the straight lines matter.

Can you draw a triangle with has?

(b) No, we cannot draw a triangle that has 2 lines of symmetry.

Is it possible to draw a triangle?

The sum of two sides should be greater than third side to draw a triangle. Not possible.

Can an object have only one line of symmetry?

An isosceles triangle: In the figure there is one line of symmetry. The figure is symmetric along the bisector of the vertical angle.

Can an object have one line of symmetry?

A line of symmetry is a line that splits a figure into symmetrical parts. In the butterfly, there is one line of symmetry that can be drawn to show the two equal matching halves of the butterfly. Let’s look at a picture of a figure that has more than one line of symmetry.