Area of Compound Shapes helps users to find the area of compound shapes by breaking them into rectangles and triangles (more info).
Compound shapes: small shapes
Compound shapes: mediumsized shapes
Compound shapes: large shapes
Compound shapes

Area of Triangles helps users to find the area of triangles (more info).
Area of triangles: triangles with a right angle
Area of triangles: height intersects with the base inside the triangle
Area of triangles: height intersects with the base outside the triangle
Area of triangles: triangles without vertical or horizontal sides
Area of triangles

Learn Alberta: Exploring Measurement series (more info).
Exploring the Pythagorean theorem
Exploring area and perimeter
