If a right circular cone shaped building has radius 8 m and slant height 17 m then what is its volume? ​

A) 256  π m3

B) 320 π m3

C) 384 π m3

D) 350 π m3 

We Know that:
                      
l2 = r2 +h2
h2=  l2 – r2
      = (17)2 + (8)2
    = 15
 V=1/3πr2 h
 V=1/3π(8)2 15
V = 320 π m3
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