Gallery

Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.

Surface Area & Volume of Cones and Spheres

Fill a cone into a cylinder and unfold its lateral surface into a sector to see why the volume is 1/3 and why a sphere fills 2/3 of its cylinder.

by Anonymous

3D Coordinates and Space Figures

Place points with three coordinates, apply the Pythagorean theorem twice to measure distance in space, and see how equidistant points form a sphere.

by Anonymous