In triangle jkl, tan(b°) = three fourths and sin(b°) = three fifths. if triangle jkl is dilated by a scale factor of 3, what is cos(b°)? triangle kl in which angle k is a right angle and angle l measures b degrees cos(b°) = three fifths cos(b°) = four fifths cos(b°) = five thirds cos(b°) = five fourths