Angle θ is an angle in standard position and B(-3,4) is a point on the terminal side of the angle. Find the value of sin(θ).

Question

Angle θ is an angle in standard position and B(-3,4) is a point on the terminal side of the angle. Find the value of sin(θ).

Answer 1

Draw and label a diagram!

For B(-3, 4), the distance from (0, 0) to B (the hypotenuse) is 5.

sin θ = 4/5