2009-25.md

course	course_year	question_number	tags	title	year
Geometry	IB	25	IB 2009 Geometry	Paper 1, Section I, G	2009

What is an ideal hyperbolic triangle? State a formula for its area.

Compute the area of a hyperbolic disk of hyperbolic radius $\rho$. Hence, or otherwise, show that no hyperbolic triangle completely contains a hyperbolic circle of hyperbolic radius $2 .$