Question
Ishika has designed a small oval race track for her remote control car. Her design is shown in the fig. What is the total distance around the track? Round your answer to the nearest whole cm.
✓
Answer
Total distance around the track $=$ lenght of $2$ parallel strips $+$ Lenght of $2$ semi-circles
$= 2 \times 52 + 2 \times \pi \times 16 [\therefore\text{r}= 16\text{cm}] $
$= 104 + 2 \times 3.14 \times 16 = 104 + 100.5009 = 205\ cm$ (approx.)
$= 2 \times 52 + 2 \times \pi \times 16 [\therefore\text{r}= 16\text{cm}] $
$= 104 + 2 \times 3.14 \times 16 = 104 + 100.5009 = 205\ cm$ (approx.)
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