The sides of a triangle ABC are 4 cm, 6 cm, and 8 cm. With the vertices of the triangle as centres, three circles are drawn each touching the other two externally. What is the sum of the radii of the three circles?

The sides of a triangle ABC are 4 cm, 6 cm, and 8 cm. With the vertice

1.	The sides of a triangle ABC are 4 cm, 6 cm, and 8 cm. With the vertices of the triangle as centres, three circles are drawn each touching the other two externally. What is the sum of the radii of the three circles?
A.	6 cm
B.	7 cm
C.	9 cm
D.	10 cm
Answer» D. 10 cm