What is the square root of 36?

The square root of 36 is 6. This is because 6 multiplied by itself (6 x 6) equals 36. It's also worth noting that -6 multiplied by -6 also equals 36, so technically, ±6 (positive or negative 6) are both square roots of 36. However, when someone asks for the square root, the positive root is generally implied.