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5 Questions

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Geometry: Understanding Angles

Created by

@AdoredTsilaisite3693

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Questions and Answers

What is the figure formed by two rays sharing a common endpoint called?

Line

Angle (correct)

Triangle

Curve

What is the word 'angle' derived from?

Proto-Indo-European root *ank-, meaning 'to bend' or 'bow'

Greek word ἀγκύλος, meaning 'crooked, curved'

Latin word angulus, meaning 'corner' (correct)

English word 'ankle'

What does Euclid define as a plane angle?

The inclination to each other, in a plane, of two lines that meet each other and do not lie straight with respect to each other (correct)

The angle formed by intersecting curves

The intersection of two planes

The magnitude of an angle

What are angles formed by the intersection of two planes called?

<p>Dihedral angles</p> Signup and view all the answers

What is the measure conventionally defined as the ratio of a circular arc length to its radius?

<p>Angle of rotation</p> Signup and view all the answers

Study Notes

Angles and Planes

An angle is a figure formed by two rays sharing a common endpoint, which is called the vertex.
The word 'angle' is derived from the Latin word 'angulus', meaning 'corner'.
According to Euclid, a plane angle is the inclination of two lines to one another in a plane, which is formed by two lines that meet.
Angles formed by the intersection of two planes are called dihedral angles.
The measure of an angle is conventionally defined as the ratio of a circular arc length to its radius.

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Description

Test your knowledge of angles in Euclidean geometry with this quiz. Explore the concepts of plane angles, dihedral angles, and angles formed by intersecting curves.