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10 August, 20:26

ABCDE is a regular pentagon with centre o calculate the size of angle x

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  1. 10 August, 20:43
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    Angle x = 108 degrees

    Step-by-step explanation:

    Find the total angle degree of a pentagon: (n-2) x180

    (5-2) x180 = 3x180 = 540

    So, 540 degrees is the total degree measure.

    540/5 to find the interior degree of angle x. Since it's a regular pentagon, all interior angles have the same measure.

    540/5=108

    Therefore, 108 degrees is the size of angle x.
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