The shape is a letter C . What is the surface area 15ft , 10ft , 7ft , 4ft , 4ft, 1ft ?
To calculate the surface area of a letter C shape, we would need to know the dimensions of the shape including the length, width, and any additional measurements.
In this case, the measurements given are 15ft, 10ft, 7ft, 4ft, 4ft, and 1ft. However, it is not clear how these measurements correspond to the dimensions of the letter C shape.
Without further information or a clearer description of the shape, it is not possible to accurately calculate the surface area.