Odpowiedź:
d = a√2
a = d/√2
a)
a = 7 cm ; d = 7√2 cm
b)
a = 10 cm ; d = 10√2 cm
c)
d = a√2 = 12 cm
a = d/√2 = 12/√2 cm = 12√2/2 cm = 6√2 cm
d)
d = 20 cm
a = d/√2 = 20/√2 cm = 20√2/2 cm = 10√2 cm
e)
d = 16 cm
a = d/√2 = 16/√2 cm = 16√2/2 cm = 8√2 cm