Odpowiedź:
a = 7cm
b = 4cm
Obw = 4+7cm = 11cm
Obw = 36m
a = 6m
b = ?
a + b = 36m
6m + b = 36m / -6m
b = 30m
a więc bok II jest równy 30m
Obw = 100mm
a = ?
b = 24mm
a + b = 100mm
a + 24mm = 100mm/ -24mm
a = 76mm
Bok I = 76mm
a = 8m
b = 17m
obw = 8m + 17m = 25m
Obw = 48cm
a = ?
b = 6cm
a + b = 48cm
a + 6cm = 48cm/ - 6cm
a = 42cm
Bok II = 42cm
a = 32mm
b = 15mm
Obw = 32mm + 15mm = 47mm
