Calculation the coordinate of a point

If the distance and angle (with global x axis) between two points is known and the coordinate of one of two points is also known (as (x,y)) , how could we calculate the coordinate of second point ? .

for example point A = (9,7), the distance between Point A and Point B is √61 (61^1/2), the angle between two points with X axis 20 degree, what is the coordinate of point B ?

[Sara]

There are infinite points at a given distance from A and they lie on a circle centered in A.

[Maria]

Many thanks to you Sara , but the angle between two points with X axis is also known .

Answer 1

[Walter Roberson]

pol2cart(distance, angle) + known_coordinates