Year 6 Free Maths Worksheets - Ninja Maths Year 6 Geometry: Free Ninja Maths Worksheets (CIRCLES) Year 6 Geometry - Worksheet 1 (circles radius, diameter, circumference and area) Year 6 Geometry - Worksheet 2 (circles radius, diameter, circumference and area) Year 6 Geometry - Worksheet 3 (circles radius, diameter, circumference and area) Year 6 Geometry - Worksheet 4 (circles ...