7. Which of the following is NOT perfect square number? a. 1 b. c. 4 d. 9 C. 3 8. Which of the following expressions has irrational square roots? a. /18 b. /81 c. /25 d. /49 9. What type of number is the square root of 256? a. irrational b. fraction c. rational d. decimal 10. What type of number is the square root of 10 a. rational b. integer c. irrational d. fraction
