Geometry smarts! (Aug 2011)

Points, lines, and planes -- Line segments and rays -- Angles -- Polygons -- Triangles -- Circles -- Quadrilaterals -- Prisms -- Pyramids -- Congruent figures -- Similar figures -- Symmetry -- Triangular and square numbers -- Figure hunt -- Cones and cylinders -- Top, front, and side views -- Slides -- Reflections -- Rotations -- Paper folding -- Perimeters -- Areas of rectangles and squares -- Areas of triangles -- Areas of parallelograms -- Circumference and area of circles -- Areas of composites -- Volume of prisms -- Volume of cones and cylinders.