Noel's scribepost , Squares

Question 15
Evaluate:
square root of:
a)49=7
b)64=8
c)652=25.2

2. a) When I use a calculator the square root of a natural number that is a perfect square, I get a perfect number as my answer.

b) When I use a calculator to get the square root of a natural number that is not a perfect square, the answer the calculator gives me has a decimal in it. This is not an exact answer. It is a(n) decimal.

I asked mr harbeck and he said that its ok if you only do 2 questions.

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