Umfang eines Quadrats mit der Seitenlänge a ist U = 4 * a
Fläche eines Quadrats mit der Seitenlänge a ist A = a2
Jetzt braucht man nur die gegebenen Informationen einzusetzen:
A) a = 12cm; U = 4 * 12cm = 48cm; A = (12cm)2 = 144cm2
B) a = 18dm; U = 4 * 18dm = 72dm; A = (18dm)2 = 324dm2
C) a = 27mm; U = 4 * 24mm = 96mm; A = (24mm)2 = 576mm2
D) a = 104m; U = 4 * 104m = 416m; A = (104m)2 = 10816m2
E) a = 8,5cm; U = 4 * 8,5cm = 34cm; A = (8,5cm)2 = 72,25cm2
F) a = 12,3dm; U = 4 * 12,3dm = 49,2dm; A = (12,3dm)2 = 151,29dm2
G) U = 16m; a = 16m/4 = 4m; A = (4m)2 = 16m2
H) U = 20dm; a = 20dm/4 = 5dm; A = (5dm)2 = 25dm2
I) U = 60cm; a = 60cm/4 = 15cm; A = (15cm)2 = 225cm2
Besten Gruß