Final answer:
The dimensions given for an ultimate frisbee field are correct, making the statement A. True. An American football field is 91.44 meters long, when converted from 100 yards excluding the endzones.
Step-by-step explanation:
The dimensions you've mentioned for an ultimate frisbee field are indeed correct: an ultimate field is typically 70 yards long and 40 yards wide, with 20-yard deep endzones. Therefore, the statement is A. True.
Moving on to your question about the length of an American football field in meters, it is known that an American football field is 100 yards long, excluding the endzones. To convert this length into meters, we use the conversion factor where 1 yard is approximately 0.9144 meters. Multiplying 100 by 0.9144 gives us 91.44 meters, which is the length of a football field excluding the endzones when rounded to the nearest 0.1 meter.