Mathematics - Geometry - Perimeter and Area - Perimeter of polygons - Calculate the Perimeter
Shapes with labeled sides. Calculate the perimeter. 12 problems: rectangles, squares, triangles, pentagons, irregular shapes. Include problems with missing sides: 'This is a rectangle. One side is 8cm. Perimeter is 26cm. What's the other side?' (8+w+8+w=26, w=5). Also: perimeter on a grid (count gri