Question

the lenth and breath of a rectingal are in the ratio 3 : 1 . If the breath is 7 cm, then the lenth of rectingal would be?​

Answer 1

Answer:

$given = length \: and \: breadth \: of \: a \: rectangle \: are \: in \: the \: ratio \: 3:1 \: and \: breadth = 7cm$

$to \: find \: the \: length \: of \: rectangle \:$

$let \: the \: length \: of \: the \: rectangle \: be \: 3x and \: breadth \: be \: x \: cm$

$we \: already \: know \: that \: breadth(x) =7cm$

$=3x=7×3$

$=21cm$

$therefore \: length \: of \: the \: rectangle \: is \: 21cm$

Step-by-step explanation:

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