trianglespeakerAt a mathematics teachers' conference a speaker asked the audience forthe radius of the incircle of a triangle having side-lengths 3, 4, 5. As a hinthe showed two pairs of congruent right-angled triangles, as in Figure 1.The Mathematical gazette
Let ABC be a right-angled triangle whose radius of the circumcircle is 5 and its one side AB = 6. The radius of incircle of triangle ABC is r. Area of Δ ABC is View Solution A circle is touching the side BC of a △ABC at point P and touching AB and AC produced at Q and ...