She matriculated from Hyde Park High School in Johannesburg and graduated from the University of Cape Town, with a bachelor of science degree in pure mathematics, in 1966.
[4] [5] In 1986, while still performing with CAPAB Ballet, Triegaardt was appointed director of the University of Cape Town School of Dance.
[6] From 1997 to 2004, as the executive chairman of the Cape Town City Ballet, she was an effective advocate for preserving the classical repertory and for encouraging the work of South African choreographers.
[8] In 1975, Triegaardt received the Nederburg Prize for her contribution to ballet, with specific mention of her performance of the Lilac Fairy in David Poole's production of The Sleeping Beauty.
In 2003, she received an award from the Western Cape premier, Ebrahim Rasool, for meritorious service to the arts in the province.