Question: A student uses a calculator and says: ""square root of 50 is equal to 7.07, and 7.07 is a decimal, so square root of 50 must be a rational number"". Which of the option best explains why the student is incorrect?
A) square root of 50​ is rational because all square roots are rational numbers.
B) square root of 50​ is irrational because its decimal form repeats.
C) square root of 50 is irrational because it cannot be written as a fraction and its decimal goes on forever without repeating.
D) square root of 50 is rational because 7.07 is a terminating decimal.
Correct answer: C
Grade: 8 | Topic: Number System | Difficulty: Medium | Standard: 8. NS. A. 1