A) 1
B) 2
C) 3
D) 4
Correct Answer: C
Solution :
Here\[{{C}_{1}}=(0,\ 0),\ {{r}_{1}}=2,\ {{C}_{2}}=(4,\ 0)\], \[{{r}_{2}}=2\] Here\[{{C}_{1}}{{C}_{2}}=4={{r}_{1}}+{{r}_{2}}\]. Thus two circles touch externally, hence, the number of common tangents is 3.You need to login to perform this action.
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