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21 October, 08:22

The diagram shows a pentagon ABCDE.

Angle EAB=118

Explain how you can tell from the size of this angle that the pentagon is not regular?

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  1. 21 October, 09:10
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    Explained in step by step

    Step-by-step explanation:

    sum of Interior angles of pentagon: 180 x 3 = 540°

    Regular pentagon has 5 congruent interior angles: 540 / 5 = 108°

    If EAB = 118° then ABCDE is not regular
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Home » Mathematics » The diagram shows a pentagon ABCDE. Angle EAB=118 Explain how you can tell from the size of this angle that the pentagon is not regular?
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