Ariel bought a new rectangular rug that is 18 feet long and six feet wide. She put the rug in her hallway and placed a small chest on
one corner. The chest is 2 feet wide and 2 feet long. What is the
area of the rug that is not covered by the chest?

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

ok thats very interesting