Use trigonometric ratios to find the area of triangle ABC. a. 18.6 units² c. 17.2 units² b. 12.0 units² d. 16.9 units²?

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  • 7 months ago

    c. 17.2 units²

  • sepia
    Lv 7
    7 months ago

    BD = 6 sin 35° = 3.44

    Area = (10/2) 3.44 = 17.2

    Answer choice:

    c. 17.2 units²

  • Como
    Lv 7
    7 months ago

    -

    Area = 1/2 x 10 x 6 sin 35°

    Area = 17•2 units²

  • David
    Lv 7
    7 months ago

    Area of isosceles triangle: 0.5*6*6*sin(110) = 16.9 square units

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  • alex
    Lv 7
    7 months ago

    Rule:

    Area = (1/2)(AB)(AC)sin(A)

  • 7 months ago

    Base = AC = 10 units

    Height = BD = ABsin(35) = 6sin(35)

    area = base * height /2 = 10*6sin(35) = 60 sin(35)/2 = 17.21 units ^2

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