Question

Q8: The diameter of a circular garden is 42m. To prevent stray animals
from damaging the garden, the gardener wants to put four rounds of
fencing (at different heights). Find​

Answer 1

Answer:

we will find by perameter fourmala is =2×(42) like this we have to do

Answer 2

Answer:

Diameter of the circular garden=21m

∴ Radius of the circular garden= 21/2m

Now, circumference of circular garden=2πr=2× 22/7×21/2

=22×3=66m

The gardener makes 2 rounds of fence so the total length of the rope of fencing =2×2πr=2×66=132m

Since the cost of 1 meter rope=Rs. 4

Therefore, cost of 132 meter rope=4× 132=Rs. 528.