# Obtuse And Reflex Angles

## Description

An illustration showing an angle the is greater than a right angle and less than a straight angle. This is an obtuse angle (solid curved arrow). The angle that is greater than a straight angle and less than two straight angles is called a reflex angle (dashed curved arrow).

## Keywords

angle, angles, geometry, greater than 180 degrees, greater than 90 degrees, less than, not right angle, obtuse, reflex

## Galleries

## Source:

G.A. Wentworth *Plane And Solid Geometry* (Boston: Ginn & Company, 1899) 11

Courtesy the private collection of Roy Winkelman