Find the unknown side length in the given triangle. Round to the nearest hundredth.

A: 20
B: 30
C: x

To find the unknown side length, we can use the Pythagorean theorem since this is a right triangle.

a^2 + b^2 = c^2

Where:
a = 20
b = 30
c = x (unknown side length)

Plugging in the values we have:

20^2 + 30^2 = x^2
400 + 900 = x^2
1300 = x^2

Now, we take the square root of both sides to solve for x:

√1300 ≈ 36.06

Therefore, the unknown side length (x) is approximately 36.06.