Question

Lavita has a rectangular garden that measures 4 feet by 6 feet. She wants to make a 3-foot border around her garden as shown in the diagram below. What is the area of the border?

Answer 1

Outer dimensions = (6 + 2·3) by (4 + 2·3) = 12 ft by 10 ft, so outer area = 120 ft².
Garden area = 4·6 = 24 ft².
Border area = 120 − 24 = 96 ft².