Question

Two circles with a radius of 4 cm and 15 cm intersect
Externally touched. What is the length of their simple common tangent?​

Answer 1

Answer:

15+4=19 so 19 is tje answer

Answer 2

The length of the tangent is = √d^2-(r1-r2)^2

d= distance between centers of circles= 15+4= 19cm

√(19)^2-(15-4)^2 === √-102 ====

== 10.099cm

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