Exercises and articles on perimeter and area of squares, rectangles, triangles and composite plane figures.
Exercises on computing the perimeter of a square or rectangle. The shape is randomly chosen each time.
Exercises on computing the perimeter of a triangle for all three basic types: equilateral, isosceles, and scalene.
Exercises on computing the area of a square or rectangle. The result is in square units (cm², m², mm²).
Exercises on computing the area of a triangle using a side and its corresponding altitude. The result is in square units.
Exercises on computing the perimeter and area of figures formed by joining or subtracting squares, rectangles, and triangles.
Exercises that randomly alternate between perimeter and area for various plane figures.