Answers

2014-08-06T00:00:53+08:00
Slant height = 6m
altitude =  4.5m
radius of the base of cone =  r² =  6² - (4.5)²= 15.75
                                               r=  √15.75 = 3.968
Vol of cone = 1/3 area of base x altitude
thus
vol =  1/3 πr²a              a  = altitude
     =  1/3 π (3.968)² * 4.5
     ~ 74.229m³
use pythagoras theorem to find the radius of the cone





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