Answer:
LK = 7 as this is a 45-45-90 Triangle
Explanation:
Hello! To begin answering this question, one must understand that angle the Pythagorean Theorem applies here! Hypotenuse squared = leg squared + leg squared, (7 square root of 2)^2 = 7^2 + X^2, 7^7 + 7^7 = (7 square root of 2)^2, 98 = 98.