Answer:
72°
Step-by-step explanation:
think about it.
A whole circle = 360°
1/5 of a whole circle = 1/5 of 360°
so
1/5 x 360 = 72°
if you want it in radians then,
A whole circle = 2π
1/5 of a whole circle = 1/5 of 2π
so
1/5 x 2π = 2π/5
leading you to the same answer of 72°
