The thyroid angle in male is:
The two laminae of thyroid cartilage meet in the midline forming an angle - the thyroid angle. It is 90deg in male and 120deg in female. The acute angle formed in male is also responsible for Adam's apple. Thyroid on its inner side gives attachment to vocal cords in its middle while just above it is the attachment of epiglottis.
60deg
90deg
100deg
120deg
Larynx