Compare the values: √18, 2√5, and √40. Which is the greatest?
Show answer & explanation
Correct answer: C
Explanation
Given:
Numbers = √18, 2√5, √40
Square of (√18) = 18
Square of (2√5) = 4 × 5 = 20
Square of (√40) = 40
Hence,
18 < 20 < 40
Hence, the largest value is √40.