Pionowo:
A) Pole kwadratu = a²
a=6
P = a² = 6² = 36
B) Pole prostokąta = a•b
a = 21
b = 15
P = a•b = 315
C) a=21
P = 21² = 441
G) Obwód kwadratu = a•4
a = 15
Obw = 15•4 = 60
Poziomo:
B) a=13
b=28
P = 13•28 = 364
D) P = a² = 121
√121 = 11
a = 11
E) Obw = a•2 + b•2 = 7•2 + 17•2 = 48
F) P = 51•11 = 561
