Question

the diameter of the base of a right cone is 10 cm and its slant height is 13cm . find the height of the cone​

Answer 1

Answer:  12cm

Step-by-step explanation:

Diameter = 2×radius = 10cm

Radius = 5cm

Height = $\sqrt{(Slant \\ height)^{2}-(radius) }$

Height = √(13² - 5²) = √(169 - 25) = √144 = 12cm

Answer 2

D = 10 therfore r = 5 cm l=13cm

l square =r square+h square

13 square =5 square + h square

169=25+ h square

169-25=h square

144=h square

Therefore height = 12 cm

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