Level:
Project ID:
1003124803
Accepted:
1
Clonable:
0
Easy:
0
The annulus shaped component parts are punched from sheet metal. Diameter of the circular hole is \( 25\,\% \) of the diameter of the whole component part. Choose the function that describes the dependence of the area (\( S \)) of material used to produce one component part on its outside diameter (\( d \)).
\( S=\frac{15}{64}\,\pi d^2 \)
\( S=\frac38\,\pi d^2 \)
\( S=\frac{15}{32}\,\pi d^2 \)
\( S=\frac{31}{64}\,\pi d^2 \)