A circular lawn is uniformly 7 meter wide and its inner edge is 440maters . calculate the radius of the inner circle and the area of the lawn?
Attachments:
Answers
Answered by
72
The inner edge is 440 metres, hence the circle has a circumference of 440 m
Thence 2 x 22/7 R = 440 metres
R = (440/44) x 7 = 70 metres
The area of the lawn = 22/7 x ((77)^2 - (70)^2)
= 22/7 (5929 - 4900)
= 22/7 x 1029
= 3234 sq m
O
Thence 2 x 22/7 R = 440 metres
R = (440/44) x 7 = 70 metres
The area of the lawn = 22/7 x ((77)^2 - (70)^2)
= 22/7 (5929 - 4900)
= 22/7 x 1029
= 3234 sq m
O
raviseth2000:
Please rank this answer as brainely
tnx for helping
Answered by
17
Answer:
3234m^2
Step-by-step explanation:
circumference of the circle=440m
=2πr
r=440/2×22/7
r=10×7
r=70
the area of the lawn. =22/7(77)^2-(70)^2
=22/7×(5929-4900)
=22/7×1029
=3234m^2
Similar questions