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Obwód :
5+6+8+10= 29
Pole :
P= [a+b]*h : 2
P= 6+10*5:2=16*5:2= 80:2=40
Trapez 2
Obwód :
6+8+6+10=20+10=30
Pole :
P=[a+b]*h : 2
P=8+10*4:2=18*4:2= 72:2=36
Obwód :
5+6+8+10= 29
Pole :
P= [a+b]*h : 2
P= 6+10*5:2=16*5:2= 80:2=40
Trapez 2
Obwód :
6+8+6+10=20+10=30
Pole :
P=[a+b]*h : 2
P=8+10*4:2=18*4:2= 72:2=36