BC is 8 cm, AC is 18 cm. Find the tangent A.

tgA = 8 / 2√15 = 4 / √15.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.