The bathroom measures 14 feet by 15 feet. They have 188 square feet of tile. Does the family have enough tile to cover their bathroom floor? Yes, they have enough tiles and will have 159 square feet of tiles left over.
Your answer should be B 10m because 4x10=40 and that's the bxh then you need to divided by 2 do it would be 20. And 20m^2 is your answer so B is your answer