Evaluate Square Roots of Perfect Squares

(B) Approximate the value of an irrational number, including π and square roots of numbers less than 225, and locate that rational number approximation on a number line

(Y7) Investigate and use square roots of perfect square numbers (ACMNA150)

8.EE.2 Use square root and cube root symbols to represent solutions to equations of the form x2 = p and x3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.