- A150°
- B145°
- C120°
- D135°
Step-by-Step Solution
The square takes 90°. The two equal octagon angles share 360° − 90° = 270°, so each is 135°.
Answer: D) 135°
Two regular octagons meet at a point with one square, leaving no gap, as shown. What is each angle of a regular octagon?
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