Help finding resultant force and angle

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Homework Statement


hi everyone! okay so i have a few questions that i worked on. the question is, FIND THE RESULTANT FORCE AND ANGLE FOR THE FOLLOWING HORIZONTAL AND VERTICAL FORCES:
A.) 250N, 350,
B. 1000N, 2000N
C 2.00KN, 1.00KN
D 25 N, -35 N
E. -10 N, -20N
F -5KN, 15 KN

Homework Equations


I used a+b=c (all squared), then i used arctan TOA to find the angle, can someone please tell me if i got the answers right?

The Attempt at a Solution


a. force of 430 N, angle of 54.5
b. force 2236 N, angle 63 degrees
c. force 2236 N, angle 26.5 degrees
d. force of 43 N, angle 35.5 degrees
e. force of 22 N, angle 63 degrees
f. force of 15811 N, angle 71.5 degrees

thanks everyone!
 

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