Answer:
tanC = 6/21 = tan-1
tan theta = opp/adj = 6/21 = tan-1 all are inverse tangents.
= 15.9453959 degree
We also need to keep in mind that hypotenuse that isnt whole number can be simplified like this.
Cos = adj/hyp = 21 / Sqrt 477 x sqrt477 / sqrt 477 = 21sqrt477/ 477
arctangent(opp/adj) = q: ... tan-1 arccsc-1, arcsec-1, and arccot-1.
Just remember tan-1 if no angles given.
Step-by-step explanation:
6^2 + 21^2 = c^2
c^2 = srt 477 = 21.8403297
c angle = tan-1 (6/21) = 15.945°
∠α = arcsin(a)
c
= arcsin (6) 21.8403297
= arcsin(0.27472112749287)
= 0.2783 rad = 15.945° = 15°56'43"
Therefore tan-1 6/21 = arcsin (6) x 21.640397 = 15.945°
