Find the unknown side length, x. write your answer in simplest radical form.
a. 2 square root 41
b. 4 square root 29
c. 48
d. 58

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,