Question

The figure below shows a circular mirror. It's radius is 46 cm

Answer 1

Part (a):

The circumference of the circle can be determined as,

Thus, the circumference of the circle is 288.88 cm

The area of the circle can be determined as,

`\begin{gathered} A=\pi r^2 \\ =3.14*(46)^2 \\ =6644.24cm^2 \end{gathered}`

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.