Question

The Perimeter Of A Square Is 84cm. its area is
Write The Answer In Full Process​

Answer 1

Answer:

Perimeter of square is 84 cm perimeter = 4×side. 84cm =4× side. Side =84/4. Side =21. So, The area of square=side×side =21cm×21cm. =441cm^2

Answer 2

Given : Perimeter of the Square is 84 cm .

To Find : Find the Area of the Square

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SolutioN :

$\dag$ Formula Used :

$\qquad \: {\pink{\bigstar \; \; {\green{\underbrace{\underline{\red{\sf{ Perimeter{\small_{(Square)}} = 4 \times Side }}}}}}}}$

$\qquad \: {\pink{\bigstar \; \; {\green{\underbrace{\underline{\red{\sf{ Perimeter{\small_{(Square)}} = Side \times Side }}}}}}}}$

$\dag$ Calculating the Side :

$\begin{gathered} \qquad \; \longrightarrow \; \; \sf { Perimeter = 4 \times Side } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \longrightarrow \; \; \sf { 84 = 4 \times Side } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \longrightarrow \; \; \sf { \dfrac{84}{4} = Side } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \longrightarrow \; \; \sf { \cancel\dfrac{84}{4} = Side } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \longrightarrow \; \; {\underline{\boxed{\pmb{\sf{ Side = 21 \; cm }}}}} \; {\pmb{\purple{\bigstar}}} \\ \\ \\ \end{gathered}$

$\dag$ Calculating the Area :

$\begin{gathered} \qquad \; \dashrightarrow \; \; \sf { Area = Side \times Side } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \dashrightarrow \; \; \sf { Area = 21 \times 21 } \\ \\ \\ \end{gathered}$

$\begin{gathered} \qquad \; \dashrightarrow \; \; {\underline{\boxed{\pmb{\sf{ Area = 441 \; {cm}^{2} }}}}} \; {\pmb{\red{\bigstar}}} \\ \\ \\ \end{gathered}$

$\therefore \;$ Area of the Square is 441 cm² .

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