Figure depicts a racing track whose left and right ends are semi-circular. The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find the distance around the track around the inner edge.

301

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400

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310

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320

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Solution

The correct option is B
400

The required distance is sum of long sides of rectangle and the circumference of semi-circles.

106 + 106 + 2 $π$ (30) =400 m

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Figure depicts a racing track whose left and right ends are semi-circular. The inner width of the track is 60 m and they are each 106 m long. If the track is 10 m wide, find the length of the track around the inner edge.
(round off to nearest whole number)

Q. Figure depicts a racing track whose left and right ends are semicircular.
The distance between the two inner parallel line segments is

60 m

and they are each

106 m

long. If the track is

10 m

wide, find:
(i) the distance around the track along its inner edge
(ii) the area of the track

Figure depicts a racing track whose left and right ends are semi-circular. The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find the area of the track (in $m^{2}$ ).