a circular track is uniformally 7m wide around a lawn and its inner edge is 440m.calculate the area of the track
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Answered by
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Step-by-step explanation:
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
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Answered by
0
Answer:
The inner edge is 440 m
, hence the circle has a circumference of 440 m
hence 2 x 22/7 R = 440 m
R = (440/44) x 7 = 70 m
area of the lawn = 22/7 x ((77)^2 - (70)^2)
= 22/7 (5929 - 4900)
= 22/7 x 1029
3234 sq m
thankyou
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