vertical angles

plural noun

1. geometry the pair of equal angles between a pair of intersecting lines; opposite angles Also calledvertically opposite angles

vertical angles

/ vûr′tĭ-kəl /

1. Two angles formed by two intersecting lines and lying on opposite sides of the point of intersection.

Example Sentences

When much accuracy is not required vertical angles can be measured by means of a quadrant of simple construction.

From Project Gutenberg

Vertical angles were always measured in both directions with the exception of the above-mentioned cases.

From Project Gutenberg

The pupil who cannot see the equality of vertical angles intuitively better than by the use of the protractor is abnormal.

From Project Gutenberg

He does not see why vertical angles should be proved equal when he knows that they are so by looking at the figure.

From Project Gutenberg