What are possible coordinates of point D if ΔDEF is congruent to ΔABC?

(–6,1)
(–6,2)
(–5,1)
(–5,2)

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

Having a hard time understanding this question (see attachment).

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet