In triangle ABC, angle B is 56, angle C is 64. side BC is 3√3. find the radius of the circle circumscribed about this triangle

univerkov | April 11, 2021 | education

We know the following:
1.Angle В = 56 °;
2. angle С = 64 °;
3. The sum of the angles in the triangle is 180 °.
Find angle A:
A = 180 – (56 + 64);
A = 60 °.
Let’s write down the formula for finding R:
R = a / (2 * sin (A));
R = 3√3;
3√3 = a * (2√3 * 2);
a = 3 cm.
Answer: 3 cm.

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