Question

find the perimeter of a rectangle whose length is 40cm and breath is 98cm​

Answer 1

Answer:

276cm

Step-by-step explanation:

Perimeter = 2(l+b) = 2(40+98) = 2(138) = 276cm

Answer 2

AnswEr-:

• $\sf{\underline{\pink{\dag{ \:Perimeter \:of\:Rectangle\:is\: \bf{276\:cm}}}}}$

Explanation-:

$\mathrm {\bf{ Given-:}}$

• The Length of Rectangle is 40 cm .

• The Breadth of Rectangle is 98 cm .

$\mathrm {\bf{ To\:Find\:-:}}$

• Perimeter of Rectangle.

$\sf{\bf{\dag{ Solution \:of\: Question-:}}}$

$\underbrace {\sf{ Understanding \:the \:Concept \:-:}}$

• We have to find Perimeter of Rectangle when Length and Breadth is given.

• By Putting known Values [ Length and Breadth] in the Formula for Perimeter of Rectangle

• By Doing this We can get the Perimeter of Rectangle.

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$\sf{\bf{\dag{ Finding \:Perimeter \:of\:Rectangle -:}}}$

As , We know that ,

• $\underline{\boxed{\star{\sf{\blue{Perimeter _{(Rectangle)}  \: = \: 2( Length + Breadth) \:units }}}}}$

$\mathrm {\bf{ Here -: }}$

• The Length of Rectangle is 40 cm .

• The Breadth of Rectangle is 98 cm .

Now Putting known Values in Formula for Perimeter of Rectangle-:

• $\qquad\quad\quad \qquad\quad \qquad\quad\longmapsto{\sf{ Perimeter \:= 2 ( 40 + 98 ) }}$

• $\qquad\quad\quad \qquad\quad \qquad\quad\longmapsto{\sf{ Perimeter \:= 2 ( 138 ) }}$

• $\qquad\quad\quad \qquad\quad \qquad\quad\underline{\boxed{\sf{ Perimeter \:= 276\: cm }}}$

Hence ,

• $\sf{\underline{\pink{\dag{ \:Perimeter \:of\:Rectangle\:is\: \bf{276\:cm}}}}}$

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$\large{\boxed{\sf|\:\:\:{\underline{\dag{ More \:to \:know -:}}\:\:|}}}$

• $\mathrm {Area \:of\:Rectangle\: -: \bf{\red{ Length\times Breadth\:sq.units}}}$

• $\mathrm {Perimeter \:of\:Rectangle\: -: \bf{\red{ 2( Length+ Breadth)\:units}}}$

• $\mathrm {Perimeter \:of\:Square \: -: \bf{\red{ 4 \times Side\:units}}}$

• $\mathrm {Area \:of\: Square \: -: \bf{\red{ Side \times Side \:sq.units}}}$

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