Question

what is the area of a square park whose is 75 metres? find the total cost of planting grass in it at ₹15 per sq m.​

Answer 1

refer to the attachment

Answer 2

$\red{\bigstar \huge\underline{\boxed{\bf\pink{Question:-}}}}$

${\green {\tt {What \: is \: the \: area \: of \: a \: square \: park \: whose \: side \: is}}}\\\tt{\green {\tt {75 \: metres? \:find \: the \: total \: cost \: of \: planting \: grass}}}\\\tt {\green {\tt{in \: it \: at \: ₹15 \:per \: sq \: m.}}}$

$\red{\bigstar \huge\underline{\boxed{\bf\pink{Answer:-}}}}$

${\red {\bf {\Large{\underline{\dag {Given:-}}}}}}$

➠$\sf\blue {Side\: of\: the\: square=75\:m}$

${\red {\bf {\Large{\underline{\dag {To\:Find:-}}}}}}$

➠$\sf \blue {Area \:of \:the \:square}$

$➠ \sf\blue {Total\: cost\: of\: planting\: grass\: at\: ₹15\: per\:sq\:m}$

${\red {\bf {\Large{\underline{\dag {Solution:-}}}}}}$

➽${\pmb{\bf{\orange{\underbrace{\underline {Area \: of \: the \: square}}}}}}$

${\green {\boxed {\boxed {\pmb {\pink {A_{(Square)}={a}^{2}}}}}}}$

$\sf \longrightarrow A={75}^{2}$

$\longrightarrow {\green {\boxed{\purple {\mathfrak {A=5625\: sq\: m}}}}}$

$➽ {\pmb{\bf{\orange{\underbrace{\underline {Total\: cost\: of\: planting\: grass }}}}}}$

$\longrightarrow \sf \:1 sq\: m=₹15$

$\longrightarrow \sf 5625\: sq \:m=15\times 5625$

$\longrightarrow {\green {\boxed {\boxed {\mathfrak{\purple {=₹84375}}}}}}$

${\underbrace{\overbrace{\underline{ \overline {\red{\pmb {{\therefore} The \:cost \:of\: planting\: grass \:of\: 5625\: sq \:m \:is\: ₹84375}}}}}}}$