量角器

Also known as Protractors

REDIRECT Goniometer#Protractor

AI overview

A protractor is a simple measuring tool used to determine the size of angles in degrees. It's a practical instrument commonly used in mathematics, geometry, and technical fields to help people accurately measure and draw angles.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Instance of: measuring instrument
Subclass of: mathematical instrument
Material used: paper
Image: Protractor katomierz.jpg
Has parts of class: scale marking

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maintained by WikiProject: WikiProject Mathematics
Commons category: Protractors
measures: angular measure

Sources (3)

via Wikidata · CC0

Article · 中文

量角器是一種用來測量角的工具圓形或半圓形工具，以角度作為量度單位。一些量角器為半圓形，在古時已存在。更先進的量角器很多時有一或兩隻可轉動的桿用來量度角度的。若要做出更為精確的測量，可以使用電腦程式或更精密的儀器進行量度。現代的量角器則多以透明塑膠製成，亦多與直尺、圓規、三角尺等成套出售。

Abstract from DBpedia / Wikipedia · CC BY-SA

量角器

Wikidata facts

Article · 中文

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