Question

The length and breadth of a rectangular
cardboard is 12 cm and 17 cm. Find the
area and perimeter of the rectangular
cardboard​

Answer 1

Question:-

The length and breadth of a rectangular cardboard is 12 cm and 17 cm. Find the area and perimeter of the rectangular

and perimeter of the rectangular cardboard

Solution:-

$\bf{given}$

$\bf{length = 12 \: cm} \\ \bf{breadth = 17 \: cm}$

Find It,

Find the area and perimeter of the rectangular cardboard.

To get an area value:-

$\bf{we \: know \: the \: formula \: of \: area}$

$\bf{area = lenght \times breadth \: }$

$\bf{putting \: the \: value \: l \: and \: b \: from \: formula}$

$\bf{area = 12 \times 17} \\ \bf{area =204 {cm}^{2} }$

To get an perimeter value:-

$\bf{we \: know \: the \: formula \: of \: perimetre \: }$

$\bf{perimeter = 2(length + breadth) \: }$

$\bf{putting \: the \: value \: of \: b \: and \: l \: from \: formula}$

$\bf{perimeter = 2(12 + 17)\: } \\ \bf{perimeter = 2(29)\: } \\ \bf{perimeter = \:58 cm}$

$\bf{Hence \: area \: of \: the \: rectangular \: cardboard } \\ = \bf\green{204 {cm}^{2} }$

$\bf{perimeter \: of \: the \: \: rectangular \: </p><p>cardboard} \\ = \bf \red{58cm}$