How many square feet of carpet will we need for this hole? ?

On a architect's drawing of a house, 1 inche representa 1.5

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122