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2 November, 12:29

a=13 c=15 A=53 Two sides and an angle (SSA) of a triangle are given. Determine whether the given measurements produce one triangle, two triangles, or no triangle at all. Solve each triangle that results.

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  1. 2 November, 14:54
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    The given measurement will produce only 1 triangle

    Step-by-step explanation:

    Given:

    a = 13

    c = 15

    ∠A = 53°

    now, applying the law of sine, we have

    (a/sinA) = (c/sinC)

    on substituting the values, we get

    (13/sin53°) = (15/sinC)

    or

    sinC = 0.921

    or

    C = 67.14°

    also, sum of all the angles of a triangle = 180°

    thus,

    ∠A + ∠B + ∠C = 180°

    53° + 67.14° + ∠B = 180°

    or

    ∠B = 59.85°

    now,

    again applying the law of sine, we have

    (a/sinA) = (b/sinB)

    on substituting the values, we have

    (13/sin53) = (b/sin59.85°)

    or

    b = 14.07

    now, we have all the dimension of the triangle and have obtained the unique values,

    Therefore, the given measurement will produce only 1 triangle
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