A rectangular room is 19.7 m by 7.0 m. What is the side length of a square room with the same area as the room?

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .

54/3 is 18 so 18 is your answer