# In triangle ABC, angle B is 56 degrees, angle C is 64 degrees, BC = 3√3. Find the radius of the circle

September 15, 2021 | education

| **In triangle ABC, angle B is 56 degrees, angle C is 64 degrees, BC = 3√3. Find the radius of the circle circumscribed about this triangle.**

It is known that the angle A of the triangle ABC is 60 °.

In order to understand why you need to draw up a formula of the following form:

A = 180 ° – angle B – angle C;

A = 60 °.

Now we find the radius of the circumscribed circle using the following formula:

R = ВС / 2 * sin a;

We get:

R = 3.

Answer: R = 3.

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.