Four angles of a pentagon measures 123, 64, 171 and 77. Find the measure of the fifth angle.

Question

Four angles of a pentagon measures 123, 64, 171 and 77. Find the measure of the fifth angle.

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Diễm Thu 5 years 2021-08-10T03:37:31+00:00 2 Answers 18 views 0

Answers ( )

  1. thnahdat
    0
    2021-08-10T03:38:50+00:00
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    Answer:

    69

    Step-by-step explanation:

  2. Tryphena
    0
    2021-08-10T03:39:08+00:00
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    105°

    a pentagon is 540°
    123+64+171+77= 435°
    540-435=105°

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