Instructions

In the following questions numbered 1 to 20, a question is followed by data in the form of two statements labelled as (I) and (II). You must decide whether the data given in the statements are sufficient to answer the questions.

Question 15

What is the lateral surface area of the cone?
(I) Volume of the cone is $$9\pi cm^{3}$$
(II) Semi vertical angle of the cone is $$30^{\circ}$$


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