• Math 2 - SAT - polar coordinates, tangent, circle?

    center of circle is (1,3) with radius r. Tangent line -> 5x + 12y = 60 I have eq - > r = | 5x + 12y - 60 / length of hypotenuse (=13) | Please explain why this equation was used
    center of circle is (1,3) with radius r. Tangent line -> 5x + 12y = 60 I have eq - > r = | 5x + 12y - 60 / length of hypotenuse (=13) | Please explain why this equation was used
    2 answers · Mathematics · 6 years ago