He needs to buy 198 tiles. To find this, break down the dimensions of the room from feet into inches then divide each number(264in and 192in) by 16in. This gives you 16.5 by 12 tiles. Now multiply 16.5 by 12 and you have your total number of tiles.
The answer is true i believe
Negative one would be the answer
The answers are:
Diameter: 30m
Circumference: 94.24777960769379
Area: 706.8583470577 m<span>2
I hope this helps you. Good luck with your work!</span>