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The drawing below is of a regular pentagon. The measure for each interior angle in a regular pentagon is 108°. Angle A is supplementary to an interior angle of the pentagon. How many degrees is angle A
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35 votes
35 votes
The drawing below is of a regular pentagon. The measure for each interior angle in a regular pentagon is 108°. Angle A is supplementary to an interior angle of the pentagon. How many degrees is angle A​

The drawing below is of a regular pentagon. The measure for each interior angle in-example-1
User Drei
by
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1 Answer

12 votes
12 votes

Answer:

  • 72°

Explanation:

The interior and exterior angles are supplementary:

  • A + 108° = 180°
  • A = 180° - 108°
  • A = 72°
User Jon Lamb
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2.7k points
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