The rectangular coordinates of polar vector (r, θ) are (r·cos(θ), r·sin(θ)). For your (r, θ) = (8.8, 170°), the rectangular coordinates are
... (8.8·cos(170°), 8.8·sin(170°)) ≈ (-8.666, 1.528)
9.5m questions
12.2m answers