Question

the park !
4) A fish tank is of the shape of a square of side 160 m. What is its perimeter ? How much
would it cost to put a barbed wire around it if the wire costs 11.50 per metre?
changed it with​

Answer 1

Given :

• A fish tank is of the shape of a square of side 160 m

To find :

• Perimeter of the fish tank
• Cost to put a barbed wire around it at the rate of Rs. 11.50

Knowledge required :-

→ Formula to calculate perimeter of square :-

• Perimeter of square = 4a

where, a denotes the side of the square.

Solution :

Periemter of the fish tank :-

→ Perimeter = 4a

→ Perimeter = 4 × 160

→ Perimeter = 640

Perimeter of the fish tank = 640 m

→ Cost to put a barbed wire around 1 m of the fish tank = Rs. 11.50

→ Cost to put a barbed wire around 640 m of the fish tank = 11.50 × 640 = 7360

★ Cost to put a barbed wire around the fish tank = Rs. 7360

Answer 2

Answer:

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \large{ \underline{ \frak{ \pink{Answer}}}}} :$

Side of the fish tank= 160m

perimeter= Side × 4

= 160 × 4= 640m

Cost= 640 × 11.50

= Rs 7360.