Find the area of the shaded portion in the circle.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

to complete this square you have to rotate about the origin 270 degrees clockwise.