A semi-regular tesselation may have:A.only one type of shapeB.three types of shapesC.gaps between shapesD.overlapping shapes

A semi-regular tessellation, also known as an Archimedean tessellation, can have more than one type of shape. However, it cannot have gaps between shapes or overlapping shapes. The shapes in a semi-regular tessellation fit together perfectly, with each vertex in the tessellation being identical.

So, the correct answer is:

A semi-regular tessellation may have: A. Only one type of shape - This is incorrect. A semi-regular tessellation can have more than one type of shape. B. Three types of shapes - This is correct. A semi-regular tessellation can have up to three different types of regular polygons. C. Gaps between shapes - This is incorrect. In a tessellation, there are no gaps between shapes. D. Overlapping shapes - This is incorrect. In a tessellation, shapes do not overlap.