anam3alem123 anam3alem123

21-03-2020
Mathematics

contestada

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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kenlingdad kenlingdad

21-03-2020

Answer:

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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