Find the number of sides of a regular polygon whose each exterior angle is ^@ 40 ^ \circ. ^@
Answer:
^@ 9 ^@
- We know that the sum of all exterior angles of a regular polygon is ^@ 360 ^ \circ.^@
- It is given that each exterior angle is ^@ 40 ^ \circ. ^@
- Thus, the number of sides in the given polygon ^@ = \dfrac { \text{ Sum of measure of all exterior angles} } { \text{ Each exterior angle} }= \dfrac { 360 }{ 40 } = 9. ^@