A cone with the sector angle of 45o is cut out ... - JAMB Mathematics 1997 Question
A cone with the sector angle of 45o is cut out of a circle of radius of the cone.
A
\(\frac{r}{16}\) cm
B
\(\frac{r}{6}\) cm
C
\(\frac{r}{8}\) cm
D
\(\frac{r}{2}\) cm
correct option: c
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