S=h(ab)*AB
AB=3x
h=x
3x*x=48
3x²=48
x²=16
x=4
Ответ:4*3=12
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S=h(ab)*AB
AB=3x
h=x
3x*x=48
3x²=48
x²=16
x=4
Ответ:4*3=12