A high school track is shaped as a rectangle with a half circle on either side.
2 answers:
Answer:
Option (3)
Step-by-step explanation:
Track is shaped as a rectangle with a semicircle on either side.
Therefore, length of the track = 2(Length of rectangle) + perimeter of a complete circle formed by joining the semicircles on each side.
= 2(96) + 2πr
=
= 192 + 35π
= 192 + 109.9
= 301.9 m
Since, Jake plans to run four laps.
Therefore, distance covered by Jake = 4 × 301.9
= 1207.6 m
Option (3) will be the correct option.
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Answer:
Step-by-step explanation:
The perimeter, <em>P</em>, is given by
Since ,
Differentiating <em>P</em> with respect to <em>w</em>,
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