Find sin(x/2) cos x/2 tan x/2 sin(x)= 4/5

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Solve the triangle. a = 21°, c = 105°, c = 5

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract