adelheidclees
05.05.2020 •
Mathematics
The length of a rectangle is twice its width
The perimeter of the rectangle is 43cm
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Ответ:
7.17 cm
Step-by-step explanation:
If the width is x, the length is twice this = 2x
And
Perimeter = 2 (W + L)
so
Perimeter = 2 ( x + 2x)
Perimeter = 2 (3x)
Perimeter = 6x
43 = 2 ( x + 2x )
43= 2 ( 3x)
43 = 6x
= 7.17 cm
Hope this helps i'm pretty sure this is how you do it :-)
Ответ:
B.
Step-by-step explanation:
.