Question

5. Find the cost of fencing a rectangular park of length 40 m and breadth 25.5 m at the rate of
12 per metre.
n triangle with sides measuring 8 cm, 12 cm and 13 cm.​

Answer 1

$\underline{\underline{\blue{\textbf{Step - By - Step - Explanation : -}}}}$

To Find :

• cost of fencing a rectangular park

Solution :

• Length of rectangle = 40m
• Breadth of rectangle = 25.5 m

Fencing is done on the boundaries of park so we should have to find the perimeter of rectangle.

$\boxed{\underline{\purple{\textbf{Perimeter of rectangle = 2(l+ b)}}}}$

= 2(40 + 25.5)

= 2 × 65.5

= 131 m

Cost of fencing the rectangular park at the rate of 12 per m :

= 12 × 131

= Rs 1572

$\large\dag \large { \pink{\underline{\bf{Hence }}}}$

$\green{\textrm{Cost of fencing the rectangular park is Rs 1572}}$

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Answer 2

Answer:

₹1572

Step-by-step explanation:

Length of the park = 40 m and breadth of the park = 25.5 m

perimeter of the rectangular Park = 2 ( length+breadth)

= 2 (40+25.5)m=2× 65.5 m

=131 m

the cost of fencing the rectangular Park = ₹ (12×131)

= ₹ 1572