Mathematics · Geometry
Two circles touch each other externally at a point X. AB is a direct common tangent to both circles, touching them at points A and B respectively. If the radii of the circles are 16 cm and 4 cm, then the length of AB is:
- 18 cm
- 2256 cm
- 364 cm
- 416 cm✓
Correct answer
16 cm
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