The ratio of the radius and height of a cone is 5: 12. Its volume is 2200/7 cm. Its slant height is:
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Step-by-step explanation:
r:h=5:12=k(say)
r=5k, h=12k
v= 1/3 pie r sq. h
2200/7=1/3*22/7*5k*5k*12k
100=100*k*k*k*
k=1
l=sq. rt of h*h+r*r
=sq. rt of 144 k*k +25 k*k
=sq. rt of 169 k*k
=13k=13
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