The triangle ABC is inscribed in the circle, ab is equal to 3 cm Find the radius.

The radius of the circumscribed circle is calculated by the formula:

R = a ^ 3 / (4 * √ (p * (p – a) * (p – a) * (p – a)),

p = (3 + 3 + 3) / 2 = 9/2 = 4.5.

Then the radius of the circumscribed circle is calculated:

R = a ^ 3 / (4 * √ (p * (p – a) * (p – a) * (p – a)),

R = 3 ^ 3 / (4 * √ (4.5 * (4.5 – 3) * (4.5 – 3) * (4.5 – 3)),

R = 3 ^ 3 / (4 * √ (4, 5 * (1, 5) * (1, 5) * (1, 5)),

R = 3 ^ 3 / (4 * √ (4.5 * 1.5 * 1.5 * 1.5),

R = 3 ^ 3 / (4 * √ (3 * 1.5 * 1.5 * 1.5 * 1.5),

R = 3 ^ 3 / (4 * 1.5 * 1.5 * √ (3),

R = √ 3.