- A16 cm
- B√396 cm
- C12 cm
- D18 cm
Step-by-Step Solution
Transverse common tangent cm. (√396 wrongly uses the difference of the radii.)
Answer: A) 16 cm
The centres of two circles of radii 7 cm and 5 cm are 20 cm apart. How long is a transverse (cross) common tangent?
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