Area of Rectangle Formula: Know to find area and perimeter of rectangle along with proper definition, units and some solved questions and examples.

Area of a compound shape Rectangle B: first calculate the length of the rectangle. The length of rectangle B = 4 cm + 1 cm = 5 cm.

For each rectangle, multiply the length and width to find its area. Subtract the cut-out rectangle area from the large rectangle area to find the area of the compound shape.