Answer:
The length of side AC is 4.25
Step-by-step explanation:
By using trigonometric formula
Sin θ = Perpendicular / Hypotenuse
But we dont have the angle A so lets find that first
We know that the sum of all interior angles of triangle is 180 so 45+A+90 = 180
Or A+135= 180 => A= 45
Now
Sin θ = Perpendicular / Hypotenuse
Sin 45 = perpendicular / 5
0.85 = Perpendicular / 5
Perpendicular = 5 * 0.85
Perpendicular = 4.25 which is AC
