In the figure, AB=AC and Angle ACD is equal to 120, find Angle B and A

Question

In the figure, AB=AC and Angle ACD is equal to 120, find Angle B and A

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Maya 1 month 2021-08-19T08:49:54+00:00 2 Answers 0 views 0

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    0
    2021-08-19T08:51:05+00:00

    Answer:

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    Step-by-step explanation:

    Question:

    In fig.,AB=AC and ∠ACD=120°.Find ∠A.

    Answer:

    We have,

    AB=AC

    ➙∠B=∠C. [∵Angles opposite to equal sides are equal]

    Now,∠ACB+∠ACD=180°. [Angles of a linear pair]

    ➙ ∠C+120°=180°

    ➙ ∠C=60°

    ➙ ∠B=60°. [∵∠B=∠C]

    Using angle sum property in ∆ABC,we obtain

    ∠A+∠B+∠C=180°

    ➙ ∠A+60°+60°=180°. [∠B=∠C=60°]

    ➙ ∠A=60°

    0
    2021-08-19T08:51:51+00:00

    Answer:

    .

                PLS PROVIDE THE FIGURE

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