Question

19. Find the perimeter of a bedsheet whose length is 8 m and breadth is 5 m​

Answer 1

Answer : 26 m

Explanation : Perimeter of rectangle is 2(l+b)

= 2*8+5

=2*13

26 m

Answer 2

Given : The length and Breadth of Bedsheet is 8m and 5m respectively.

Need To Find : Perimeter of Bedsheet.

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❍ Finding Perimeter of Bedsheet using the Formula for Perimeter of Rectangle is given by :

$\dag\frak{\underline { As\:We \:know\:that,}}$

⠀⠀⠀⠀⠀ $\implies {\underline {\sf{ Perimeter _{(Rectangle)} = 2 ( l + b ) \:units .}}}$

⠀⠀⠀⠀⠀Here l is the Length of Rectangle in metres and b is the Breadth of Rectangle in metres .

⠀⠀⠀⠀⠀⠀$\underline {\bf{\star\:Now \: By \: Substituting \: the \: Given \: Values \::}}$

⠀⠀⠀⠀⠀ $:\implies {\tt{ Perimeter _{(Rectangle)} = 2 ( 8 + 5 ) \:units .}}$

⠀⠀⠀⠀⠀ $:\implies {\tt{ Perimeter _{(Rectangle)} = 2 ( 13 ) \:units .}}$

⠀⠀⠀⠀⠀$\underline {\boxed{\pink{ \mathrm {  Perimeter _{(Rectangle)} = 26\: m}}}}\:\bf{\bigstar}$

Therefore,

⠀⠀⠀⠀⠀$\therefore {\underline { \mathrm {  Perimeter \:of\:Bedsheet\:is\:26\: m}}}$

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$\begin{gathered}\boxed{\begin {array}{cc}\\ \dag\quad \Large\underline{\bf Formulas\:of\:Areas:-}\\ \\ \star\sf Square=(side)^2\\ \\ \star\sf Rectangle=Length\times Breadth \\\\ \star\sf Triangle=\dfrac{1}{2}\times Breadth\times Height \\\\ \star \sf Scalene\triangle=\sqrt {s (s-a)(s-b)(s-c)}\\ \\ \star \sf Rhombus =\dfrac {1}{2}\times d_1\times d_2 \\\\ \star\sf Rhombus =\:\dfrac {1}{2}p\sqrt {4a^2-p^2}\\ \\ \star\sf Parallelogram =Breadth\times Height\\\\ \star\sf Trapezium =\dfrac {1}{2}(a+b)\times Height \\ \\ \star\sf Equilateral\:Triangle=\dfrac {\sqrt{3}}{4}(side)^2\end {array}}\end{gathered}$

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