What area is
Area is the number of square units that cover a shape.
Base (b): 1 side of the shape. Height (h): the distance from the base to the top. The height makes a right angle with the base.
Watch shapes change into rectangles
Square unit: a square with sides of 1 unit. Area uses square units.
Try it
Change a triangle and find its area
- Move the sliders to change the base, the height, and the top point.
- Look at the area after each change.
- Turn on the second triangle to make a parallelogram.
Quick check
Answer 5 questions. You see your score at the end.