Question

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Answer 1

➲Given that, A rectangular field has the length 140m and breadth 90m. and the cost to fence it for meter is rs.2

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To Find:

• ➢the total cost of fencing the field.

Understanding the question:

➜ so, now to get to know the total cost of fencing we have to find the perimeter of the rectangle and multiply it with the cost of fencing per meter.!

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Solution:

★let's find the perimeter of the field now★

we know that,

$\sf {\red {\underbrace{ \bigstar \: perimeter = 2(l + b)}}}$

⇾let's substitute the given values now:

$: \implies \tt \: perimeter = 2(l + b) \: \: \: \: \: \: \: \: \\ \\ \\ \\ : \implies \tt \: perimeter = 2(140 + 90) \\ \\ \\ \\: \implies \tt \: perimeter = 2(230) \: \: \: \: \: \: \: \: \: \\ \\ \\ \\ : \implies \tt \: perimeter = \blue{460m \star} \: \: \: \: \: \: \: \:$

$\sf \underline{ \therefore \: perimeter \: of \: the \: field = 460m}$

Now let's find the cost of fencing it,

➷Cost of fencing equals perimeter × cost per meter

$: \longrightarrow \tt \: rs.460 \times 2 \\ \\ \\ : \longrightarrow \tt \: rs.920 \: \: \: \: \: \: \:$

$\blue{ \underline{ \boxed{ \pink{ \mathfrak{ \therefore \:the \: cost \: to \: fence = rs.920}}}}}$