Solve for the missing measure.
Round your answer to the nearest tenth.

Using the Pythagorean theorem:
20^2 = 8^2 + X^2
400 = 64 + X^2
X^2 = 400 - 64
X^2 = 336
X= √336
X = 18.3
use pythagoras theorem
20^2 = 8^2 + x^2 where x = length of th other leg
x^2 = 20^2 - 8^2 = 336
x = sqrt 336
= 18.3 to nearest tenth