Reuleaux triangle
Reuleaux polygon with three sides
A Reuleaux triangle is a shape made when three circles cross. It looks like a triangle with round sides and pointed corners.
To make one, first draw two dots. Then put a compass on the two dots and draw a circle. Do the same thing again, this time with the other dot as the middle of the circle. Choose either the top or bottom points of the connecting circles as a new center, using the two drawn dots as the edge, and draw the third circle.
If a is how wide the Reuleaux triangle is, the area is . The perimeter is .
A Reuleaux polygon is a shape like the Reuleaux triangle with an odd number of sides.
A Reuleaux tetrahedron is made when four spheres cross. It looks like a Reuleaux triangle as a pyramid with three sides at the bottom.
- Reuleaux triangle in gray
- Reuleaux polygons
- Reuleaux tetrahedron made with four spheres
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