Answer:
161.67 square feet of wrapper.
Explanation
The given diagram shows the net of a gift box. In order to know the amount of wrapping used, we will calculate the total surface area of the figure.
The surface area is the sum of the shapes shown. The figure consists of 2triangles and 3 rectangle.
Determine the area of the rectangles
Area of the rectangles = (6ft * 7ft) +(5ft *7ft) + (7.81 * 7)
Area of the rectangles = 42+ 35 + 54.67
Area of the rectangles = 131.67 square feet
Determine the area of the triangles
Area of the two triangles = 6ft * 5ft
Area of the two triangles= 30 square feet.
Determine the surface area
Surface area = 131.67 + 30
Surface area =161.67 square feet
This shows that he used 161.67 square feet of wrapper.
