Question

what is the positive square root of 121?
\sqrt{121} = \square

Explanation:

Step1: Recall square root definition

A square root of a number \( x \) is a number \( y \) such that \( y^2 = x \). The positive square root is the positive \( y \) satisfying this.

Step2: Find \( y \) where \( y^2 = 121 \)

We know that \( 11 \times 11 = 121 \), so \( 11^2 = 121 \). Thus, the positive square root of 121 is 11.

Answer:

11