If a pipe of length √98 m is cut into 7 equal parts, what is the length of each part, and is it rational or irrational?
Show answer & explanation
Correct answer: D
Explanation
Total length of the pipe = √98 meters
= √(49 × 2)
= 7√2 meters
Length of each part = 7√2 / 7
= √2 meters
Since √2 is an irrational number, the length of each part will also be irrational.