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The field inside a 400 m running track is to be seeded. Each straight portion of the track
is 100 m. Each curved part of the track is a semicircle. One 1.5 kg bag of grass seed will
seed an area of 80 m ^2.
a) What is the length of each curved part of the track?
b) Calculate the width of the field.
c) Calculate the area of the field.
d) Determine the number of bags of seed required.
e) One 1.5 kg bag of grass seed costs $12.64. How much does it cost to seed the field?

 Apr 13, 2020
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Here are the additional answers: 1 bag will seed 80 sq m. Thus 26708 sq m will need 26708/80 = 333.85 = 334 bags. Cost of every bag = $12.64 => Cost to seed entire plot = 334 * 12.64 = 4221.76$

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 Apr 13, 2020

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