The width is 16 feet and the length is 20 feet and so 16*20 = 320 square feet
a whistle
The width is 16 feet
Five yards and fifteen feet are the same length.
Perimeter = 2*(Width + Length) So 40 = 2*(8 + Length) 20 = 8 + Length Length = 12.
Sound signaling device
Multiply boat length (in feet) by boat width (in feet), then divide by 15.
18 Feet
single-hull boats less than 20 feet in length
18 Feet
A signal sound device
Whether or not the boat has adequate guards or a railing
a whistle
12 years of age and under on a 19 foot boat or less.
When referring to boating, PWC stands for personal watercraft. The definition of PWC is a boat less that 16 feet in length, that is powered by jet pumps instead of propellers.
Its width is 13 feet and 13*19 = 247 square feet
Boat cover sizes are measured by how many feet your boat is. The average boat size is probably less than 20 feet. Boat covers generally come in a universal size that fits several different size boats. For example a cover can come in 17 to 19 feet or 20 to 22 feet.