Categories Beginner Pines and sky Post author By Marshall W. Buck Post date November 2, 2023 No Comments on Pines and sky Pines and sky Show that the light blue area is the same as the dark green area. Continue reading “Pines and sky” Tags area, square, triangle
Categories Intermediate The tetromino Post author By Rik D. Tangerman Post date November 1, 2023 No Comments on The tetromino The tetromino A square, its diagonal and six smaller squares. What fraction is purple? Continue reading “The tetromino” Tags area, fraction, square