the gardener wants to fence a circular garden of diameter 21 m.find the length of rope ge needs to purchase ,if he make 2 rounds of fence .also find the cost of rope .if it costs rs 4 per meter
Answers
Answered by
73
So D =21
r=21/2
Cost rupee 4
2πr=2×22/7×21/2
Circumference=66
For twice=132
Cost=132×4=528
r=21/2
Cost rupee 4
2πr=2×22/7×21/2
Circumference=66
For twice=132
Cost=132×4=528
Answered by
37
Answer:
Diameter=21m
Radius=21/2m
Circumference of circular garden=^r sq
2×22/7×21/2
=22×3
=66m
Length of rope =66×2=132m
Cost of 1m rope =₹4
Cost of 132m rope =132×4= ₹ 528
Step-by-step explanation:diameter ka half hota hai circle ha radius.phir circumference nikalne ke lia formula laga kr jo 2 multiply me hai usse jo 2 divide mai hai use cut kr dena phir 7se 21
Similar questions