When Quadrilaterals Have Inscribed Circles: 10698

Wu Wei Chao, Plamen Simeonov. When Quadrilaterals Have Inscribed Circles: 10698. The American Mathematical Monthly, 107(7):657-658, 2000. [doi]

Authors

Wu Wei Chao

This author has not been identified. Look up 'Wu Wei Chao' in Google

Plamen Simeonov

This author has not been identified. Look up 'Plamen Simeonov' in Google