Question

A gardener wants to fence a circular garden of diameter 21 meter. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the cost of the rope , if it cost Rs 4 per meter. (Take \pi = 22/7

Answer 1

Answer:

In ΔAOB,O is right angle.

∴ Applying Pythogorus theorem,

(AB)

2

=(OB)

2

+(OA)

2

=9+16

(AB)

2

=25

AB=5

∴ He is 5km from starting point.

Answer 2

Answer:

Step-by-step explanation:

A gardener wants to fence a circular garden of diameter 21 meter. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the cost of the rope , if it cost Rs 4 per meter. (Take \pi = 22/7