A.) 4.7 feet B.) 6.5 feet C.) 30.7 feet D.) 5.5 feet E.) 22.3 feet
The roller coaster cars are designed as shown, with a yellow racing stripe along the diagonal of the parallelogram face. Determine the length of the racing stripe.
The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?