wzór na pole trapezu (a+b)*h/2
a=8
h=10
(8+b)*10/2=62 {*2
(8+b)*10=124 {/10
8+b=12,4
b=4,4
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wzór na pole trapezu (a+b)*h/2
a=8
h=10
(8+b)*10/2=62 {*2
(8+b)*10=124 {/10
8+b=12,4
b=4,4