Question

f you guys know only answer please​

Answer 1

14. l=7/2

b=19/4

perimeter=2×(l+b)

=33 cm

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Answer 2

$given \: length \: of \: rectangular \: sheet \: = 3 \frac{1}{2}$

$= > length \: = \frac{7}{2}$

$width \: of \: the \: sheet \: = \: 4 \frac{3}{4}$

$= > \ width = \frac{19}{2}$

$perimeter \: of \: rectangular \: sheet \\ = 2(l + b)$

$= > perimeter \: = 2( \frac{7}{2} + \frac{19}{2} )$

$= 2( \frac{7 + 19}{2} )$

$= 2( \frac{26}{2} )$

$= 2(13)$

$= > perimeter \: = 26$