alternate angle

noun

: one of a pair of angles with different vertices and on opposite sides of a transversal at its intersection with two other lines:

a

: one of a pair of angles inside the two intersected lines

called also alternate interior angle

b

: one of a pair of angles outside the two intersected lines

called also alternate exterior angle

Illustration of alternate angle

• a a′ b b′ alternate interior angles
• c c′ d d′ alternate exterior angles

Examples of alternate angle in a Sentence

Recent Examples on the Web

An alternate angle of the stomp shows the boy’s head knocking off the basketball court after the blow, which makes the boy’s body go limp. —David Matthews, New York Daily News, 24 July 2024

Indeed, both sides of the political divide have been increasingly discussing and even proposing solutions to this existential threat, albeit from alternate angles. —TIME, 22 Apr. 2024

Check out the alternate angle from one of our two AL.com videographers on the field for the game. —Michael Casagrande | [e-mail], al, 5 Sep. 2021

Also, notice that the tops of the cutting teeth are ground at alternating angles, meaning one tooth angles to the left, the next to the right. —Joseph Truini, Popular Mechanics, 24 July 2019

Word History

First Known Use

1570, in the meaning defined above

Kids Definition

alternate angle

noun

1

: one of a pair of angles on opposite sides of a line intersecting two other lines and between the two intersected lines

called also alternate interior angle

2

: one of a pair of angles on opposite sides of a line intersecting two other lines and outside the two intersected lines

called also alternate exterior angle