Sexto año: Ángulos entre Paralelas

https://www.thatquiz.org/es/practicetest?6z65m6iy13r02

http://maralboran.org/wikipedia/index.php/Plantilla:%C3%81ngulos_entre_dos_paralelas_cortadas_por_una_transversal

http://maralboran.org/web_ma/Anaya/Anaya07/1ESO_ALUMNO/datos/11/03.htm

https://www.thatquiz.org/es-C/?-j2-l8-p0

https://www.thatquiz.org/es/practicetest?6z65m6iy13r02