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How do i solve this (Tamgent Segment)​

How do i solve this (Tamgent Segment)​-example-1

1 Answer

10 votes

Answer:

5

Explanation:

Since DE is tangent to the circle, that means DE is perpendicular to EF

==> DF = sqrt(4^2+3^2) = 5

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User Karthy Sbk
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