Georgia O'Keeffe's career is bookended by circles. She drew and painted them often in the 1910s, then in 1946 abandoned the motif, didn't draw or paint them for nearly three decades, then brought them ...

2D shapes can be found printed in a book or you can draw them on a piece of paper. 2D shapes have sides ... Can you work out which? A circle is not a polygon because it doesn’t have straight ...