Triangle GHI

G
H
I
is a right triangle. The length of one leg is 11 and the hypotenuse is 22. What is the length of the other leg? Round your answer to two decimal places.

1 answer

To find the length of the other leg in a right triangle, we can use the Pythagorean theorem, which states:

\[ a^2 + b^2 = c^2 \]

where \(c\) is the length of the hypotenuse, and \(a\) and \(b\) are the lengths of the legs. We know one leg, which we'll take as \(a = 11\), and the hypotenuse \(c = 22\).

We need to find the other leg \(b\). Plugging in the known values:

\[ 11^2 + b^2 = 22^2 \]

Calculating the squares:

\[ 121 + b^2 = 484 \]

Now, we can solve for \(b^2\):

\[ b^2 = 484 - 121 \] \[ b^2 = 363 \]

Taking the square root of both sides to find \(b\):

\[ b = \sqrt{363} \]

Calculating the square root:

\[ b \approx 19.08 \]

Rounding to two decimal places, the length of the other leg is:

\[ \boxed{19.08} \]