Answer:
i.e circle circumference
Explanation:
Data provided as per the question is
Arc NOP = Central angle =
![\theta = 90^\circ](https://img.qammunity.org/2021/formulas/mathematics/high-school/y9cohbpq8wfgsxjwbr2c9dy18mmfwobqto.png)
The Radius of circle = 5 units
The statement is shown below:-
we need to determine the statement which defines the best length of arc NOP
Arc length is
=
![(control\ angle)/(360) * circumference\ of\ circle](https://img.qammunity.org/2021/formulas/mathematics/high-school/ajhse4yyyl7vgss7pudvjm7fkm414yvzli.png)
now we will put the values into the above formula
=
![(90)/(360) * 2\pi r](https://img.qammunity.org/2021/formulas/mathematics/high-school/fdzdh668mjq38anxyc2rjomblmu9lqt124.png)
=
![(1)/(4) * 2\pi r](https://img.qammunity.org/2021/formulas/mathematics/middle-school/nixipaa68bc0xeh5kmufwvmv8yna63jipi.png)
Hence, the
i.e circle circumference is the best statement described.