Answer:
Hence Cos X = 40/41 .
Step-by-step explanation:
Given- X Y = 41 units, Y Z = 9 units, X Z = 40 units, ∠ Z= 90°,
∵ ∠ Z = 90°, so Δ XYZ is a right triangle.
∴ By Pythagorean Theorem-
Cos X = [tex]\frac{Base}{Hypotenuse}[/tex]
Cos X = [tex]\frac{X Z}{X Y}[/tex]
Cos X = [tex]\frac{40}{41}[/tex]
