Respuesta :

Answer:

15) diagonals are congruent in rectangles and squares; looks like a square

16) SW = 31

Step-by-step explanation:

since diagonals are congruent in rectangles then 'a+30' equals '2a+29'

a + 30 = 2a + 29

30 = a + 29

a = 1

SW = WU = TW = WV