# What is a quadrilateral pentagon?

Table of Contents

## What is a quadrilateral pentagon?

Answer: A quadrilateral and a pentagon have in common are that they both are closed polygons and the sum of their exterior angles is 360°. Both quadrilateral and pentagon are two-dimensional closed shapes. Explanation: The pentagon is a 5-sided polygon formed by joining 5 vertices and no three vertices are collinear.

### What triangles make up a pentagon?

The pentagon is divided into five identical isosceles triangles. Each triangle has one angle that is 360° ÷ 5 = 72° and two equal angles (�� in the diagram).

#### Can a pentagon be split into triangles?

If we divide a pentagon into triangles as in the figure on the left below, the pentagon is made up of 3 triangles, so the angle sum is 180 + 180 + 180 = 3*180 = 540 degrees….Angles in Isosceles Triangles.

a | b |
---|---|

36 | |

72 |

**Is a triangle a quadrilateral?**

Explanation: All triangles have three sides and three angles, hence the root word “tri” which means “three”. All quadrilaterals have four sides and four angles, hence the root “quad” meaning “four”. A triangle will never be a quadrilateral, because they do not share traits.

**How many triangles are there in quadrilateral?**

The triangles that can be constructed with diagonals are the following- ABC, DBC, BAD, CAD. Hence, 4 triangles are possible. How many diagonals does each of the following have? In the adjoining figure, ABCD is a quadrilateral.

## How many triangles are in a quadrilateral?

two triangles

Quadrilaterals are composed of two triangles. Seeing as we know the sum of the interior angles of a triangle is 180°, it follows that the sum of the interior angles of a quadrilateral is 360°.

### Is a pentagon a parallelogram?

A pentagon is NOT a parallelogram.

#### Are pentagon angles equal?

A regular pentagon has all its five sides equal and all five angles are also equal. Hence, the measure of each interior angle of a regular pentagon is given by the below formula. Measure of each interior angle = [(n – 2) × 180°]/n = 540°/5 = 108°.