Discussion
The length and breadth of a room are 8 m and 6 m respectively. A cat runs along all the four walls and finally along a diagonal order to catch a rat. How much total distance is covered by the cat?
Answer: C
Correct answer: 38
Running along all four walls covers the perimeter, \( 2(8+6) = 28 \) m, and the diagonal is \[ \sqrt{8^2+6^2} = 10 \text{ m} \] so the cat covers \( 28 + 10 = \mathbf{38} \) metres in all.
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