In a triangle ABC, angle C is 90 degrees, angle A is 60, find the equality of the side AC.

Given:

Triangle ABC – rectangular;

Angle C – 90 degrees;

Angle A – 60 degrees;

Let’s find the equality AC;

Solution:

The angles of a triangle add up to 180 degrees.

Find corner B.

Angle B = 180 – 60 – 90 = 120 – 90 = 30 degrees.

sin A = AC / AB;

cos A = BC / AB;

AB = AC / sin A;

AB = BC / cos A = BC / (1/2) = 2 * BC.



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.