Question

9. The area of a square is 169 cm2. Find its :
(i) one side
(ii) perimeter​

Answer 1

Question:-

The area of a square is 169 cm2. Find its :

(i) one side

(ii) perimeter

Solution:-

(i) one side =

=>area = (a)²

=> a = √(169) = 13 cm

(ii) perimeter = a ×4 = 13 × 4 = 52cm

Thankyou~

Answer 2

$\huge \underline{\rm{Answer}}$

$\large \underline{ \underline{ \frak{ \color{peru}Given:}}}$

$\mapsto \sf{Area \: of \: square=169 {cm}^{2} }$

$\large \underline{ \underline{ \frak{ \color{magenta}To \: find:}}}$

$\leadsto \sf{Side \: of \: square. }$

$\leadsto \sf{Perimeter \: of \: square. }$

$\large \underline{ \underline{ \frak{ \color{mage}Formula \: required:}}}$

$\dag \underline{ \blue{\boxed{ \orange{ \rm{Side \: of \: square= \sqrt{Area} }}}}}$

$\dag \underline{ \blue{\boxed{ \orange{ \rm{Perimeter \: of \: square= 4 \times Side}}}}}$

$\large \underline{ \underline{ \frak{ \color{blue}According \: to \: Question:}}}$

$\dashrightarrow{ \sf{Side \: of \: square= \sqrt{Area} }}$

$\dashrightarrow{ \sf{Side \: of \: square= \sqrt{169 {cm}^{2} } }}$

$\dashrightarrow{ \sf{Side \: of \: square= 13cm}}$

$\bf \underline{Then,}$

${ \dashrightarrow{ \sf{Perimeter \: of \: square= 4 \times Side}}}$

${ \dashrightarrow{ \sf{Perimeter \: of \: square= 4 \times13 cm}}}$

${ \dashrightarrow{ \sf{Perimeter \: of \: square= 52cm}}}$

$\bf \underline{Hence,}$

$\: \: \: \: \star \underline{ \blue{\boxed{ \red{ \rm{Side \: of \: square=13cm }}}}}$

$\: \: \: \: \star \underline{ \blue{\boxed{ \red{ \rm{Perimeter \: of \: square=52cm}}}}}$