373,509 views
20 votes
20 votes
Find the value for a.

Find the value for a.-example-1
User Yurmix
by
3.3k points

1 Answer

16 votes
16 votes

Answer:

a = 25

Explanation:

The exterior angles of a polygon sum to 360°

Sum the exterior angles and equate to 360

a + a + 40 + 51 + 55 + 54 + 2a + 60 = 360, that is

4a + 260 = 360 ( subtract 260 from both sides )

4a = 100 ( divide both sides by 4 )

a = 25

User Arun NS
by
3.1k points