Question

Polar coordinates of a point are given. Find the rectangular coordinates of the point.

LED

(-5, - 180°)

Answer 1

(5, 0)

Explanation:

You can put the coordinates in the formula ...

(x, y) = (r·cos(θ), r·sin(θ))

(x, y) = (-5·cos(-180°), -5·sin(-180°)) = (-5(-1), -5(0))

(x, y) = (5, 0)