a = 12cm
d = 13cm
b = ?
b liczymy z twierdzenia pitagorasa
a² + b² = d²
12² + b² = 13²
144 + b² = 169
b² = 169 - 144
b² = 25
b = √25
b = 5
P = ab
P = 12cm * 5cm
P = 60cm²
Ob = 2a + 2b
Ob = 2*12cm + 2*5cm
Ob = 24cm + 10cm
Ob = 34cm
liczę na naj
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a = 12cm
d = 13cm
b = ?
b liczymy z twierdzenia pitagorasa
a² + b² = d²
12² + b² = 13²
144 + b² = 169
b² = 169 - 144
b² = 25
b = √25
b = 5
P = ab
P = 12cm * 5cm
P = 60cm²
Ob = 2a + 2b
Ob = 2*12cm + 2*5cm
Ob = 24cm + 10cm
Ob = 34cm
liczę na naj