Respuesta :
The square of 45 and square root of 21 are irrational. The square root of 64 is rational
Answer: is A, C, D
A. √45= 6.7082039324993690892275210061938
B. √64= 8
C. √21= 4.582575694955840006588047193728
D. √21= 4.582575694955840006588047193728
Step-by-step explanation:
An Irrational Number is a real number that cannot be written as a simple fraction.