calculate d resultant of d two force of 8N and 7N acting perpendicular t o eaph other nd angld of d direction

Say 8 Newtons in x direction

and 7 in y direction
resultant magnitude = sqrt (64 + 49) = sqrt 113 = about 10.63 Newtons
tan theta = 7/8
theta = about 41.2 degrees above x axis