# What are the 2 diagonals?

Table of Contents

## What are the 2 diagonals?

Therefore, a quadrilateral has two diagonals, joining opposite pairs of vertices. For any convex polygon, all the diagonals are inside the polygon, but for re-entrant polygons, some diagonals are outside of the polygon….Polygons.

Sides | Diagonals |
---|---|

34 | 527 |

## Which quadrilateral must have two congruent diagonals?

Quadrilaterals

A | B |
---|---|

in these quadrilaterals, the diagonals are congruent | rectangle, square, isosceles trapezoid |

in these quadrilaterals, each of the diagonals bisects a pair of opposite angles | rhombus, square |

in these quadrilaterals, the diagonals are perpendicular | rhombus, square |

a rhombus is always a… | parallelogram |

## Which shape has congruent diagonals?

A parallelogram with congruent diagonals must be a rectangle. Some rhombuses are rectangles. The diagonals of a rhombus are congruent.

## Does a square have two congruent diagonals?

The square has the following properties: All of the properties of a rhombus apply (the ones that matter here are parallel sides, diagonals are perpendicular bisectors of each other, and diagonals bisect the angles). All of the properties of a rectangle apply (the only one that matters here is diagonals are congruent).

## What does diagonal look like?

A diagonal is made out of a straight line that’s set at an angle instead of straight up or across. If you picture a square and draw a line connecting the opposite corners, that’s a diagonal line. You’ll find diagonal lines in geometry, and also in the world around you.

## Are diagonals of a parallelogram congruent?

The opposite angles of a parallelogram are congruent. The consecutive angles are supplementary. The diagonals of a parallelogram are sometimes congruent. The diagonals of a rhombus are always perpendicular.

## Can two triangles with different perimeters are congruent?

For instance, if one triangle has all three sides the same length as another triangle, then the triangles must be congruent; but this isn’t true for any polygons with more than three sides. So maybe, if two triangles have the same perimeter and the same area, they must be congruent.

## What is the example of diagonal?

The definition of diagonal is something with slanted lines or a line that connects one corner with the corner furthest away. An example of diagonal is a line going from the bottom left corner of a square to the top right corner.

## What is the formula for finding the diagonal of a square?

The diagonal of a square is the line stretching from one corner of the square to the opposite corner. To find the diagonal of a square, you can use the formula d=s2{\\displaystyle d=s{\\sqrt {2}}}, where s{\\displaystyle s} equals one side length of the square.

## What shapes have perpendicular diagonals?

A rhombus is a parallelogram with four equal sides. The diagonals of a rhombus bisect each other and are perpendicular. A rectangle is a parallelogram with four 90° angles. The rectangle of a rhombus bisect each other and have equal length.

## How do you calculate diagonal?

To calculate a diagonal of a square, multiply the length of one of the square’s sides by the square root of 2. If you don’t know the length of one side, you can find it by plugging the square’s perimeter into the formula: perimeter = 4s, where s is the length of one side.

## How do you calculate the diagonal measurement of a rectangle?

Each triangle will have sides of length l and w and a hypotenuse of length d. You can use the Pythagorean theorem to estimate the diagonal of a rectangle, which can be expressed with the following formula: d² = l² + w², and now you should know how to find the diagonal of a rectangle explicit formula – just take a square root: d = √(l² + w²).