Prealgebra ?s?

Question

Find the measure of each exterior angle of a regular polygon with 40 sides.

171°

4.5°

9°

360°

Find the measure of each exterior angle of a regular polygon with 18 sides.

20°

10°

160°

360°

Which statement is false?

a decagon has 10 angles

a hexagon has 6 angles

a pentagon has 5 angles

a quadrilateral has 8 angles

Which statement is false?

a quadrilateral has 4 angles

a pentagon has 7 angles

an octagon has 8 angles

a hexagon has 6 angles

Answer 1

1. 9

3. D (quadrilateral 1)

4. B

Answer 2

1 . 171 (exterior angle)

2 . 160 (exterior angle)

3 . quadrilateral has 8 angles

4 . pentagon has 7 angles

Answer 3

171degrees

20degrees

a quadrilateral has 8 angles

a pentagon has 7 angles