Describe the possible outcomes when a line segment AB is rotated 180 degrees

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

What is the circumference of the pie