1.

The sum of interior angles of a regular pentagon is

Answer»

ong>Answer:

540 degree

Step-by-step explanation:

LET the no. of SIDES be n

Therefore n = 5 ( pentagon )

By the formula

The SUM of interior angles = (n - 2) * 180

Therefore

(5-2) * 180

180 * 3

= 540



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