3D Geometry

Rotate 3D solids to see what a flat diagram hides: cuboids, prisms, pyramids, cylinders, cones and spheres, their nets, cross-sections, surface area and volume, plus angles and distances in space and orthographic views.

7 interactive Mathematics simulations on 3d geometry.

2D + 3D Orthographic projection – three views of a solid Mathematics · 3D Geometry Build a solid from unit cubes (click the grid to raise or lower each column) or pick a preset shape, rotate it to... Ages 16–17
2D + 3D Angle Between a Line and a Plane, Distance in a Regular Pyramid Mathematics · 3D Geometry A regular pyramid S.ABCD (or S.ABC) can be rotated with the mouse or a finger. The simulation constructs the... Ages 16–17
2D + 3D Regular pyramids – triangular and square base Mathematics · 3D Geometry A regular pyramid is drawn in 3D; drag it to rotate in any direction, or switch on auto-rotate. Change the base... Ages 13–14
2D + 3D Cuboids and triangular prisms in 3D Mathematics · 3D Geometry A cuboid (a × b × h) or a right prism whose base is a right triangle (legs a, b and height h) is drawn in space;... Ages 12–13
2D + 3D Cross-section of a cuboid through three points Mathematics · 3D Geometry The cuboid ABCD.A'B'C'D' can be rotated by mouse or touch. Three points M on AB, N on AD, and P on CC' can be... Ages 16–17
2D + 3D Cylinder, cone, and sphere – surface area and volume Mathematics · 3D Geometry A 3D model of a cylinder, cone, or sphere that can be rotated by dragging with the mouse or a finger. Drag the... Ages 14–15
3D Cylinder, cone, sphere, prism and pyramid in 3D – nets and cross-sections Mathematics · 3D Geometry A rotatable 3D model of a cylinder, a cone and a sphere, plus a regular triangular prism and a regular square... Ages 14–15