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4 November, 00:20

the sum of the measures of the angles of a trapezoid is 360. find the missing measure. top right corner 100°, top left corner 100°, bottom right corner d°, bottom left corner 80°

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  1. 4 November, 00:22
    0
    The missing measure is 80°

    Step-by-step explanation:

    Since the sum of the measures of the angles of the trapezoid=360°

    ⇒∠DAB+∠ABC+∠BCD+∠CDA=360°

    It is given in the question that ∠A=80°, ∠B=100°, ∠C=100° and need to find the measure of ∠D,

    ⇒80°+100°+100°+∠CDA=360°

    ⇒280°+∠CDA=360°

    ⇒d=360°-280°

    ⇒d=80°

    Thus, the missing measure is 80°
  2. 4 November, 00:40
    0
    The measure of missing angle i. e ∠d is 80°

    Step-by-step explanation:

    Given that the sum of the measures of the angles of a trapezoid is 360. find the missing measure. top right corner 100°, top left corner 100°, bottom right corner d°, bottom left corner 80°. we have to find he value of d.

    According to question

    100° + 100° + 80°+d°=360°

    ⇒ 280°+d=360°

    ⇒ d=80°

    Hence, the measure of missing angle i. e ∠d is 80°
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