IN MATH: 1. n. 10-sided polygon. EX. Please draw a decagon in the sand.

IN ENGLISH: 1. as defined above.

APPLICATION: See list 140.

1. How many diagonals may be drawn from one vertex of a decagon?

2. How many diagonals may be drawn in a decagon? (See DIAGONAL for help.)

3. What's the measure of 1 angle of a regular decagon?

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