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Observe the motion of a car as shown in ...

Observe the motion of a car as shown in the figure and answer the following questions :

Compare the distance covered by the car through the path ABC and AC. What do you observe? Which path gives the shortest distance to reach D from A? Is it the path ABCD or the path ACD or the path AD?

Text Solution

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1.AB+BC
ABC=4m+3m=7m
AC=5 m
2.AB+BC+CD
ABCD=4 m + 3m + 4m =11 m
ACD=AC+CD=5 m +4m =9 m
AD=3 m
`therefore` The shortest distance to reach D from A will be AD, that is 3 m .
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