Last Updated
：2025/11/23
pyramidal number
（ plural ）
Quizzes for review
(mathematics) A number that represents the number of items in a pyramid having a given number of sides and layers
音声機能が動作しない場合はこちらをご確認ください
See correct answer
pyramidal number
To determine how many spheres were required to build a pyramid with five layers, she computed the corresponding pyramidal number.
See correct answer
To determine how many spheres were required to build a pyramid with five layers, she computed the corresponding pyramidal number.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
