[tr][td][br][table][tr][td][size=85][left][/left][/size]Grades: 9-12 (AS)[br][br]Duration: 30 min[br][br]Tools: one Logifaces Set / 2-3 pairs [br]or 4-6 students[br][br]Individual/Pair work[br][br]Keywords: Cosine, Formula, Proof[br][br][br][br][br][br][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][size=150][b][/b][center]Ratio of Heights[/center][center][b][/b][/center][/size][table][tr][td][table][tr][/tr][/table][center][/center][table][tr][/tr][/table] [img]https://www.geogebra.org/resource/uccfkxcd/BmxK8FWZgtLILjhS/material-uccfkxcd.png[/img] [img]https://www.geogebra.org/resource/ustcdx69/JtR18BlLvkdMlwZx/material-ustcdx69.png[/img] [/td][/tr][tr][td][size=150][b][center]MATHS / Trigonometry[/center][/b][/size][/td][/tr][tr][td][br][/td][/tr][/table][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][img]https://www.geogebra.org/resource/mtuymvrb/w4RGGbmmPRjfnjNR/material-mtuymvrb.png[/img][/td][/tr][/table]__________________________________________________________________________________________________________________________________________[/td][/tr][tr][td][/td][/tr]

[size=50]Grade 9, Grade nine, Grade 10, Grade ten, Grade 11, Grade eleven, Grade 12, Grade twelve.[br][/size][size=50]Logifaces[br]Classroom activity[br]assignment[br]homework[br]Interactive visualisation[br]Cosine, Formula, Proof, Trigonometry[br]Advanced, advanced, Advance, advance[br][size=50][size=50]math[size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50][size=50], mathematic, mathematics, exercise[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][br][/size]