erin93
12.10.2019 •
Mathematics
Is the square root of 9 a real number
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Ответ:
b-width
perimeter of rectangular floor: 2a+2b=204
The length is two times the width: a=2b
2a + 2b = 204
2*2b + 2b = 204
6b = 204|:6
b = 34
a=2b=2*34=68
a=68->length
b=34->width