The height of a cone is equal to its base diameter. Then slant height

1.	The height of a cone is equal to its base diameter. Then slant height of the cone is
A.	\[\sqrt{{{r}^{2}}+{{h}^{2}}}\]
B.	\[r\sqrt{5}\]
C.	\[h\sqrt{5}\]
D.	\[rh\sqrt{5}\]
Answer» C. \[h\sqrt{5}\]

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The height of a cone is equal to its base diameter. Then slant height of the cone is

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