1003030305

Level: 
Project ID: 
1003030305
Accepted: 
1
Clonable: 
0
Easy: 
1
Let k1 and k2 be circles with the centres S1, S2, and the radii of lengths 5cm and 1cm consecutively. Given |S1S2|=6cm, what is the mutual position of these circles?
The circles k1 and k2 are externally tangent.
The circles k1 and k2 are internally tangent.
The circle k1 lies inside the circle k2.
The circle k2 lies inside the circle k1.