Question

a gardener wants to fence a circular garden of diameter 28 cm. find the length of the rope he needs to purchase, if he makes two rounds of fence. also find the cost of the rope if it cost rupees 5 per metre. (pi=22/7)

give the answer as soon you can​

Answer 1

Answer:

The answer is given to the picture.

Answer 2

Answer:

Given:-

• Gardener wants to fence a circular garden of diameter 28 cm.

Find:-

• Find the length of the rope he needs to purchase, if he makes two rounds of fence??
• Find the cost of the rope if it cost rupees 5 per metre.

Solution:-

Diameter of circular garden = 28cm

We know that Radius is equal to half of diameter

$\sf{Radius = \frac{28}{2} = 14m}$

So, the radius is 14m

Circumference of circular garden:-

From the formula ⤵

${ \boxed{ \sf{Circumference \: of \: circle= 2\pi \ \: r}}}$

${ \to{2 \times \frac{22}{7} \times 14}}$

${ \to{2 \times 22 \times 2}}$

${ \to{88m}}$

So, the circumference of circular garden is 88m

He makes two rounds of fence

So, Total length of rope of fencing is :-

${ \to{2 \times 2\pi \: r}}$

${ \to{2 \times 88 = 176m}}$

So, Total length of rope of fencing is 176m

Since, Cost of 1 meter rope = Rs. 5

Cost of 176 m Rope = 5×176 = Rs. 880

↪Length of the rope he needs to purchase, if he makes two rounds of fence is 176m

↪The Total cost of the rope if it cost rupees 5 per metre is Rs. 880