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How do i solve for DG?

How do i solve for DG?-example-1

1 Answer

3 votes

Answer:

25.9

Explanation:

Tangents drawn from a common external point are equal.


10x-31=2x+17 \\ \\ 8x-31=17 \\ \\ 8x=48 \\ \\ x=6 \\ \\ \implies GE=29 \\ \\ DG=√(29^2-13^2) \approx 25.9

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