--- title: Hoeken vinden met goniometrische functies description: Oefen met sinus, cosinus en tangens om onbekende hoeken te berekenen. url: https://astra-ai.co/nl/videos/trigonometrie/trigonometrische-functies/de-waarde-van-een-hoek-vinden-met-goniometrische-functies-oefening-2/ locale: nl type: video-lesson published: 2026-10-01T19:45:20.537Z updated: 2026-10-01T19:45:20.537Z alternates: my: https://astra-ai.co/my/videos/my-b77f8f5c/my-b232e89b/my-2994bb75/ lv: https://astra-ai.co/lv/videos/trigonometrija/trigonometriskas-funkcijas/stunda-2994bb75/ pl: https://astra-ai.co/pl/videos/trygonometria/funkcje-trygonometryczne/znajdowanie-wartosci-kata-za-pomoca-funkcji-trygonometrycznych-cwiczenie-2/ en: https://astra-ai.co/videos/trigonometry/trigonometric-functions/finding-angle-value-trigonometric-functions-exercise-2/ es: https://astra-ai.co/es/videos/trigonometria/funciones-trigonometricas/calcular-angulos-con-funciones-trigonometricas/ sl: https://astra-ai.co/sl/videos/trigonometrija/trigonometricne-funkcije/iskanje-kota-s-trigonometricnimi-funkcijami-vaja-2/ it: https://astra-ai.co/it/videos/trigonometria/funzioni-trigonometriche/trovare-valore-angolo-funzioni-trigonometriche-esercizio-2/ de: https://astra-ai.co/de/videos/trigonometrie/winkelfunktionen/ermitteln-von-winkelwerten-mit-winkelfunktionen-bung-2/ fr: https://astra-ai.co/fr/videos/trigonometrie/fonctions-trigonometriques/comment-calculer-un-angle-avec-la-trigonometrie/ hr: https://astra-ai.co/hr/videos/trigonometrija/trigonometrijske-funkcije/pronalazenje-kuta-trigonometrijskim-funkcijama-vjezba-2/ nl: https://astra-ai.co/nl/videos/trigonometrie/trigonometrische-functies/de-waarde-van-een-hoek-vinden-met-goniometrische-functies-oefening-2/ pt: https://astra-ai.co/pt/videos/trigonometria/funcoes-trigonometricas/encontrando-um-angulo-com-funcoes-trigonometricas-exercicio-2/ da: https://astra-ai.co/da/videos/trigonometri/trigonometriske-funktioner/bestemmelse-af-en-vinkel-med-trigonometriske-funktioner-velse-2/ el: https://astra-ai.co/el/videos/trigonometria/trigonometrikes-synartiseis/finding-the-value-of-an-angle-with-trigonometric-functions-exercise-2/ cs: https://astra-ai.co/cs/videos/trigonometrie/goniometricke-funkce/urceni-hodnoty-uhlu-pomoci-trigonometrickych-funkci-cviceni-2/ bg: https://astra-ai.co/bg/videos/trigonometriya/trigonometrichni-funktsii/namirane-na-agal-s-trigonometrichni-funktsii-uprazhnenie-2/ fi: https://astra-ai.co/fi/videos/trigonometria/trigonometriset-funktiot/kulman-arvon-maarittaminen-trigonometrisilla-funktioilla-harjoitus-2/ th: https://astra-ai.co/th/videos/trigonometry/bot-46-fangchan-trikon/botrian-071/ ko: https://astra-ai.co/ko/videos/trigonometry-ko/40/071/ id: https://astra-ai.co/id/videos/trigonometri/fungsi-trigonometri/menentukan-nilai-sudut-fungsi-trigonometri-latihan-2/ hu: https://astra-ai.co/hu/videos/trigonometria/trigonometriai-fuggvenyek/szogertek-meghatarozasa-trigonometriai-fuggvenyekkel-2-gyakorlat/ sv: https://astra-ai.co/sv/videos/trigonometri/trigonometriska-funktioner/bestam-vinkelns-varde-med-trigonometriska-funktioner-ovning-2/ no: https://astra-ai.co/no/videos/trigonometri/trigonometriske-funksjoner/finn-vinkel-med-trigonometriske-funksjoner-velse-2/ ro: https://astra-ai.co/ro/videos/trigonometrie/functii-trigonometrice/calcularea-unghiului-functii-trigonometrice-exercitiul-2/ lt: https://astra-ai.co/lt/videos/trigonometrija/trigonometrines-funkcijos/pamoka-2994bb75/ uk: https://astra-ai.co/uk/videos/uk-topic-09/uk-chapter-46/uk-lesson-2994bb75/ vi: https://astra-ai.co/vi/videos/vi-topic-09/vi-chapter-46/tim-gia-tri-goc-bang-ham-luong-giac-bai-tap-2/ sk: https://astra-ai.co/sk/videos/trigonometria/kapitola-040/lekcia-071/ sr: https://astra-ai.co/sr/videos/trigonometrija/poglavlje-040/lekcija-071/ tr: https://astra-ai.co/tr/videos/trigonometri/bolum-040/ders-071/ lo: https://astra-ai.co/lo/videos/lo-b77f8f5c/lo-b232e89b/lo-2994bb75/ ms: https://astra-ai.co/ms/videos/trigonometry/bab-46-matematik-asas/pelajaran-071/ zh-TW: https://astra-ai.co/zh-TW/videos/trigonometry/chapter-b232e89b/lesson-2994bb75/ km: https://astra-ai.co/km/videos/trigonometry/chapter-b232e89b/lesson-2994bb75/ es-CL: https://astra-ai.co/es-CL/videos/trigonometria/capitulo-40/leccion-de-matematicas-71/ zh-HK: https://astra-ai.co/zh-HK/videos/shuxue-kecheng-009/shuxue-zhang-046/shuxue-kecheng-071/ br: https://astra-ai.co/br/videos/trigonometria/capitulo-matematica-046/video-matematica-071/ es-AR: https://astra-ai.co/es-AR/videos/trigonometria/capitulo-40/calcular-angulos-con-funciones-trigonometricas/ es-PE: https://astra-ai.co/es-PE/videos/trigonometria/capitulo-video-b232e89b/leccion-de-video-2994bb75/ en-PH: https://astra-ai.co/en-PH/videos/trigonometry/chapter-b232e89b/lesson-2994bb75/ en-IN: https://astra-ai.co/en-IN/videos/trigonometry/chapter-b232e89b/finding-angle-value-trigonometric-functions-exercise-2/ ms-BN: https://astra-ai.co/ms-BN/videos/trigonometri/bab-b232e89b/pelajaran-2994bb75/ mx: https://astra-ai.co/mx/videos/trigonometria/capitulo-40/leccion-71/ pt-TL: https://astra-ai.co/pt-TL/videos/trigonometria/capitulo-de-video-040/licao-de-video-071/ et: https://astra-ai.co/et/videos/trigonomeetria/trigonomeetrilised-funktsioonid/nurga-leidmine-trigonomeetriliste-funktsioonidega-harjutus-2/ ja: https://astra-ai.co/ja/videos/trigonometry-ja/40/071/ --- # De waarde van een hoek vinden met goniometrische functies – oefening 2 > Oefen met het vinden van onbekende hoeken met sinus, cosinus en tangens. ## HOEKEN BEREKENEN In deze oefening gebruiken we goniometrische verhoudingen in een rechthoekige driehoek om een onbekende hoek te vinden. Kies de juiste verhouding, vul de bekende zijden in en gebruik de inverse functie op de rekenmachine. Controleer of de gevonden hoek bij de tekening past. ## CONCLUSIE Een zorgvuldige keuze van de verhouding maakt hoekberekeningen eenvoudig.