If the base radius of a cone is 5cm and the slant height is 13cm, find (a) the height of the cone (b) the volume of the cone to the neaarest cm2
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Step-by-step explanation: r= 5cm
l = 13cm
a).
l²= r²+ h²
(13)²= (5)²+ h²
h²=169 - 25
h²= 144
h = 12 cm
b) . Volume of cone = 1/3 × πr²h
= 1/3 × π × 5×5×12
= 100π cm³
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