1 Answer

Jordy Dieltjens · Answer 1 · 2023-10-24T01:21:11+0000

Since it is a right triangle, we can apply trigonometric functions:

Cos a = adjacent side / hypotenuse

a = angle = 45

Adjacent side = x

Hypotenuse = √5

Replacing:

Cos 45 = x / √5

Solve for x

Cos 45 (√5) = x

√2/2 (√5) = x

√10/2 = x

$x=\frac{\sqrt[]{10}}{2}$

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