Definition:Right Spherical Triangle

Definition

Let $\triangle ABC$ be a spherical triangle.

Let one of the angles of $\triangle ABC$ be a right angle: $\dfrac \pi 2$.

Then $\triangle ABC$ is known as a right spherical triangle.

Also see

• Definition:Quadrantal Triangle

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): spherical triangle
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): spherical triangle