Copy of 3D Trigonometry: Angles in a Tetrahedron
The diagram shows a tetrahedron with an equilateral triangular base.
The sides of the base are 8cm and the altitude of the tetrahedron is 10cm.
Point O is at the centre of the base and point S is the apex directly above the centre.
Drag the sliders to see the measures from different perspectives.
Tick the HINTS boxes when required.