# How to draw triangles in a polygon?

Article by: Ms. Juana UreĆ±a Tercero | Last update: April 10, 2022
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To do this, draw diagonals from any vertex to all other nonadjacent vertices. Here we have a quadrilateral. If we draw diagonals from a vertex, we are left with two triangles.

## How can you draw a triangle?

Drawing of an equilateral triangle with ruler and compass

Draw the segment AB that will be the base of the triangle (example 6 cm). Open the compass as wide as the base segment (5 cm). Mark with the letter C the point where the traced arcs intersect. This will be the third vertex of the triangle.

## What is the polygon of a triangle?

A triangle is a three-sided polygon. A triangle is determined by three line segments called sides, or by three non-aligned points called vertices. The vertices of a triangle are written with capital letters.

## What are the 3 elements of a triangle?

Notable elements of a triangle

Heights of a triangle. Height is each of the perpendicular lines drawn from a vertex to the opposite side (or its extension). Orthocenter. … Medians of a triangle. … Barycentre. … Bisectors of a triangle. … Circumcenter. … Bisectors of a triangle. … Incenter.

## What are the types of polygons?

Types of polygons according to the number of sides

Triangle: It has three sides. Quadrilateral: It has four sides. Pentagon: It is a figure with five sides. Hexagon: It has six sides. Heptagon: It has seven sides. Octagon: Its number of sides is eight. Enneagon: It has nine sides. Decagon: It has ten sides.

41 related questions found

### How to build a triangle with measurements?

To build a triangle according to the measures of its sides, it must be fulfilled that the sum of the measures of two sides of a triangle must be greater than that of the third side. This is known as the triangle inequality. Example: Example: Construct a triangle with sides 8 cm, 6 cm and 5 cm.

### How many triangles are there in a polygon with n sides?

Every polygon with n sides can be broken down into n-2 triangles. This result is important to be able to study how much the interior angles of a polygon measure.

### How many triangles does a 10-sided polygon have?

The pentagon, in 3 triangles. The heptagon at 5 and the decagon at 8.

### How many triangles are formed in a hexagon?

Joining each vertex with its opposite, the regular hexagon is divided into six equilateral triangles.

### How many right triangles are there in a pentagon?

The two diagonals that start from a common vertex determine three triangles in succession in the pentagon, one in the middle part: isosceles, whose equal sides are the diagonals; two triangles equal to the sides of the previous one, are also isosceles because they have as equal sides, two of the sides of the pentagon…

### What are the types of polygons according to their sides?

3 sides. QUADRILATERAL.4 sides. PENTAGON.5 sides. HEXAGON.6 sides. HEPTAGON.7 sides. OCTOGON. 8 sides. ENEAGON.9 sides. DECAGON.10 sides. HENDECAGON.

### What are polygons and how are they classified?

A polygon is regular if all its sides and interior angles are equal. If not, it is irregular. If a polygon has equal sides and not equal angles, or vice versa, it is said to be regular according to its sides (it can also be called equilateral) or regular according to its angles (it can also be called equiangular).

### What is a polygon and an example?

They are the lines that form the figure. A polygon must have at least three sides and there is no maximum number of sides. A polygon can be, for example, a triangle (polygon with three sides), a pentagon (polygon with five sides), an octagon (polygon with eight sides), among many others. Vertices.

### What are triangles and their elements?

Triangles or trigones are flat, basic geometric figures that have three sides in contact with each other at common points called vertices. Its name comes from the fact that it has three interior or internal angles, formed by each pair of lines in contact at the same vertex.

### What are the names of the elements of the triangle?

elements of a triangle

Height. The height of a triangle is the segment that joins a vertex with the side opposite that vertex, which is called the base. … Orthocenter. Since there are 3 vertices, there are 3 heights, which intersect each other at the same point called the orthocenter. … Median. … Barycentre. … Bisector. … Incenter.

### What are the primary elements of a triangle?

The elements of the triangle are those that make up this geometric figure, which can be defined as primary and secondary elements. The primary elements are the vertices, sides and angles (interior and exterior).

### How do you draw a rectangle?

Open the compass with the measure of the side, in this case, 3 cm and supporting it with the center at A, cut the perpendicular of AB with an arc. The point where the perpendicular intersects is the vertex of the rectangle. Mark it with the letter D. With the same opening of the compass and resting with the center on B, trace an arc upwards.

### How do you draw a scalene triangle with a ruler and compass?

Open the compass with the measure of the second known side, in this case 3cm and leaning on B mark an arc that cuts the segment of the angle. The point where the segment of the angle is cut will be the third vertex of the scalene triangle. Label it with C. Join a with B with C and the scalene triangle is built.

### How do you make a square with a ruler and compass?

Place the point of the compass at point Q and draw an arc somewhere below side MN. Place the point of the compass at point P and draw another arc that intersects the arc drawn in the previous step at some point (say point R). Connect points P and R and points Q and R using a straight edge ruler.

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