Shapes & spaces

Work out areas, volumes and dimensions with confidence.

Showing 49–61 of 61 tools

Find the volume and surface area of a rectangular box.

Distinguish semiaxes from full axes and exact area from an explicitly approximate perimeter.

Use a side circumradius or apothem to derive a regular convex polygon’s dimensions and angles.

Separate perpendicular height slant length curved area and circular end closures.

Keep the parent sphere radius cap height and cut-disk radius distinct.

Validate a three-side triangular base before deriving prism volume lateral area and closed surface.

Count inner and outer arcs plus exposed radial cuts with a separate full-turn boundary rule.

Separate the straight cylindrical middle from the overall length of two hemispherical ends.

Keep the major centerline radius distinct from tube radius and outside radius.

Compare enclosed area and boundary length for a rectangle square circle or right triangle with a proportional SVG sketch.

Classify an angle from zero to a full turn and see its counterclockwise rays and arc.

Add the exterior face areas of a cube rectangular prism or closed cylinder and compare surface area with enclosed volume.

Solve planar triangle sides angles area perimeter and radii using four stated input configurations and an SVG sketch.