Narrator: Okay. Draw a rectangle.Now, measure the perimeter. It’s the total length around a shape. But what if you couldn’t measure the sides? Then you’d have to use what information you do know to ...

To calculate the area of a composite shape you must divide the shape into rectangles, triangles or other shapes you can find the area of and then add the areas back together. You may have to calculate ...

Area of Triangle Formula: In general, "area" refers to the region inside the boundary of a flat object or figure and is measured in square units, with the standard unit being square meters (m²). There ...