video 1.0 Kokai Studio Media https://media.kokai.studio Kokai Studio Media https://media.kokai.studio <iframe src="https://media.kokai.studio/embed/804954149" width="640" height="360" frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen title="LEKTOR_Wiskunde_Martha_Havo-Vwo_J1_H7_Meten_P3_De-cirkel_B_Oppervlakte-cirkel"></iframe> 640 360 283 804954149 /videos/804954149 Mon Sep 14 2026 11:48:00 GMT+0000 (Coordinated Universal Time) https://media.kokai.studio/media/posters/804954149/poster-1789386908161.jpg 1280 720