Vocab Flashcard 12 in Polygons

Front

Nonagon sides?

Back

9

Front

Name the polygon in the photo.

Back

Decagon

Front

Polygon:

Back

Closed figure of straight line segments.

Front

Classify the polygon: concave or convex?

Back

concave

Front

In a parallelogram, consecutive angles are __________.

Back

supplementary

Front

In a parallelogram, diagonals __________ each other.

Back

bisect

Front

NOT a property of a parallelogram?

Back

Diagonals are congruent.

Front

Formula for sum of interior angles of a polygon?

Back

180(n-2)

Front

Formula for one exterior angle in a regular polygon:

Back

\frac{360}{n}

Front

Formula for one interior angle of a regular polygon:

Back

\frac{(n-2)180}{n}