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11 August, 05:01

Triangle ABC has the angle measures shown. Measure of angle A = (2 x) degrees. Measure of angle B = (5 x) degrees. Measure of angle C = (11 x) degrees. Which statement is true about the angles?

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  1. 11 August, 05:24
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    This question is incomplete because it lacks the appropriate options

    Complete Question

    Triangle ABC has the angle measures shown. Measure of angle A = (2 x) degrees. Measure of angle B = (5 x) degrees. Measure of angle C = (11 x) degrees.

    Which statement is true about the angles?

    a) Measure of angle A = 20 degrees

    b) Measure of angle B = 60 degrees

    c) Angle A and Angle B are complementary

    d) Measure of angle A + measure of angle C = 100 degrees

    Answer:

    a) Measure of angle A = 20 degrees

    Step-by-step explanation:

    It is known that the sum of angles in a triangles = 180°

    We are given these values in the question

    Triangle ABC has the angle measures shown. Measure of angle A = (2 x) degrees. Measure of angle B = (5 x) degrees. Measure of angle C = (11 x) degrees.

    Therefore,

    Angle A + Angle B + Angle C = 180°

    2x + 5x + 11x = 180°

    18x = 180°

    x = 180° / 18

    x = 10°

    Finding each of the angles

    Angle A = 2x = 2 * 10 = 20°

    Angle B = 5x = 5 * 10 = 50°

    Angle C = 11x = 11 * 10 = 110°

    Therefore, the correct option is:

    a) Measure of angle A = 20 degrees
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