Question

Which of these choices are square roots of 100? Check all that apply.

A -100^1/2
B -50
C 10
D -10
E 50
F 100^1/2

Answer 1

C. 10

Explanation:

It is very easy to find the square root of a number that is a perfect square. For example, 100 is a perfect square, 100 = 10 × 10. So, 10 is the square root of 100 and this can be expressed as √100 = 10. The square root of any number, in general, can be found by using any of the four methods given below:

• Repeated Subtraction Method
• Prime Factorization Method
• Estimation and Approximation Method
• Long Division Method