Question

Draw a triangle with sides equal to 3 cm, 7 cm, and 6.5 cm. Also, find it's circumradius.

Answer 1

Draw a triangle ABC with the given specifications, AB = 6.5 cm, AC = 7 cm, and BC = 3 cm.

Draw perpendicular bisectors of sides AB and AC, they meet at O. Join OB.

So, O is the centre and OB is the radius of the circumcircle of
$△$ABC.

From the above constructions, we see that the circumradius of
$△$ABC is 3.5 cm.