Question
Download Solution PDFThe diameters of two circles are 12 cm and 20 cm, respectively and the distance between their centres is 16 cm. Find the number of common tangents to the circles.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The diameters of the two circles are 12 cm and 20 cm
The distance between their centres is 16 cm
Calculation:
According to the diagram,
The two circles are touching each other externally
So, the number of common tangents will be 3
∴ The required answer is 3.
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