3 years ago

What is the value of x?

Mathematics

1 answer:

laila [671]3 years ago

8 0

Answer:

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

The exterior angle adjacent to 93° = 180° - 93° = 87°

Sum the exterior angles and equate to 360

78 + x + 52 + 87 + x + 3 = 360 ← simplify left side

2x + 220 = 360 ( subtract 220 from both sides )

2x = 140 ( divide both sides by 2 )

x = 70 → C

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