Best Answer

No. A small pentagon will have smaller diagonals than a large pentagon! However, all the diagonals of a regular pentagon will be congruent.

Q: Do all regular pentagons have congruent diagonals?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons

True

Sometimes. For a regular pentagon, all the sides and interior angles are congruent. However, this isn't the case for some pentagons.

No. An isosceles trapezium (isosceles triangle with its apex removed) would have congruent diagonals but it is not a parallelogram.

NO! Only REGULAR Pentagons. All equilateral triangles are similar!!!

Related questions

Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons

All regular polygons.

True

squares,rectangles,regular pentagons

I assume you mean a regular dodecahedron. A regular dodecahedron has twelve faces, each of which are regular* pentagons. *(all sides are congruent, all angles are congruent)

Sometimes. For a regular pentagon, all the sides and interior angles are congruent. However, this isn't the case for some pentagons.

No, similar pentagons (or any polygon for that matter) must have corresponding congruent angles and all sides must be proportional to its corresponding sides. For example, if a square with a triangle on it is a pentagon, then a regular pentagon would not be similar to it (because corresponding angles are not congruent).

"Congruent" isn't used to describe the diagonals of a rhombus. However, all four sides of a rhombus are congruent - they are all the same length.The diagonals of a rhombus are perpendicular to each other. They are not the same length - if the diagonals were the same length, then you would have a square.

No. An isosceles trapezium (isosceles triangle with its apex removed) would have congruent diagonals but it is not a parallelogram.

NO! Only REGULAR Pentagons. All equilateral triangles are similar!!!

All pentagons are regular or irregular 5 sided polygons

Only rectangles (squares included) have congruent diagonals, because all their angles are congruent (90 degrees). If you have angles larger or smaller than 90 degrees it makes the diagonals different lengths.