Part (a):
The circumference of the circle can be determined as,
[tex]\begin{gathered} C=2\pi r \\ =2\times3.14\times46\text{ cm} \\ =288.88\operatorname{cm} \end{gathered}[/tex]
Thus, the circumference of the circle is 288.88 cm
The area of the circle can be determined as,
[tex]\begin{gathered} A=\pi r^2 \\ =3.14\times(46)^2 \\ =6644.24cm^2 \end{gathered}[/tex]
Thus, the required area of the circular mirror is 6644.24 square centimeters.
Part (b):
When the mirror's glass is replaced its area is measured.
Part (c):
When the silver wire is placed around the mirror its circumference is measured.
