Question

A room has a floor area of 15 m by 10 m. A square carpet of side 7 m is laid on the floor. How much of the floor area is not carpeted?​

Answer 1

Answer:

10m²

Step-by-step explanation:

Area of the floor = 15 x 10 = 150m²

Area of the carpet = 7 x 7 = 49m²

Area not carpeted = 150 - 49 = 10m²

Answer 2

Answer:

length of the floor = 15m

breadth of the floor = 10m

$area \: of \: the \: floor \: = length \times breadth = 15m \times 10m = 150 {m}^{2}$

$side \: of \: the \: carpet \: = 7m$

$area \: of \: the \: carpet \: = {(side)}^{2} = {(7m)}^{2} = 49 {m}^{2}$

$area \: not \: covered \: by \: the \: carpet \: = 150 {m}^{2} - 49 {m }^{2} = 101 {m}^{2}$