Question

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?

Answer 1

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