Question

the area of a card board piece is 36sq cm its length is 9 cm then what is its width

Answer 1

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The given Information is

The length (l) of the card board piece is 9 cm

The area of the card board piece is 36 sq.cm

Area of the Card board = length (l) × width (b)

$l \times b \: = 36 \: {cm}^{2}$

$9cm \times b \: = 36 \: {cm}^{2}$

$b = 36 {cm}^{2} \div 9cm$

$b \: = 4cm$

Hence , the width of the card board piece is 4 cm

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