Question

Q.3. The area of a rectangle is 216 m and its breadth is 12m. Find the perimeter. Also find
the cost of fencing this rectangular field @ Rs 4.50 per m.​

Answer 1

$\huge\underline\bold\color{red}\mathfrak{Answer}$

Area of rectangle = lb

Area = 216 m²

b = 12 m

Substituting,

216 = l×12

l = 216/12

l = 18 m

Perimeter = 2(l+b)

Perimeter = 2(18+12) = 2×30 = 60 m

Now,

Cost for 1 m = 4.5

Cost for 60 m = 60×4.5 = 270 Rs.

So the cost of fencing is ₹270.

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#BAL

#WMK

Answer 2

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