What is the square root of 49?

The square root of 49 is 7. This is because 7 multiplied by itself (7 x 7) equals 49. It's also worth noting that -7 multiplied by -7 also equals 49, so technically, ±7 are both square roots of 49. However, when someone asks for "the" square root, they usually mean the principal square root, which is the positive one (7).