polygons

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how do you figure out the sum of the interior angles?
find the number of triangles and times by 180
1 of 6
find the sum of the interior angles of a decogan
e.g. decogans have 8 triangles. Therefore the answer is 1440
2 of 6
how do you find an interior angle?
find the sum of the interior angles and divide them by the number of sides.
3 of 6
find an interior angle for a hexagon
e.g: the sum of the interior angles is 720 and there are 6 sides. Therefore the answer is 120.
4 of 6
how do you find an exterior angle?
straight line (180) - each interior angle.
5 of 6
find an exterior angle for a pentagon
e.g: 180- interior angle (108) Therefore the answer is 72
6 of 6

Other cards in this set

Card 2

Front

find the sum of the interior angles of a decogan

Back

e.g. decogans have 8 triangles. Therefore the answer is 1440

Card 3

Front

how do you find an interior angle?

Back

Preview of the front of card 3

Card 4

Front

find an interior angle for a hexagon

Back

Preview of the front of card 4

Card 5

Front

how do you find an exterior angle?

Back

Preview of the front of card 5
View more cards

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