Mathematics

Question

tenth grade tangent lines the question is screenshooted
tenth grade tangent lines the question is screenshooted
tenth grade tangent lines the question is screenshooted

1 Answer

  • check the picture below

    radii are equal to each other, of course, and two tangent lines to the same circle, meeting outside, are also equal to in length

    now, notice the middle line, is the same length for both triangles, because it's shared by both triangles, congruent triangles by SSS
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