Question

the slant height of cone is 8 cm and its radius is 17cm find its height​

Answer 1

Answer:

Slant height = root r^2 + h^2

Height = root r^2 + l^2

= root 8^2 + 17^2

= root 64+ 289

= 18.7 cm

Step-by-step explanation:

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Answer 2

The height of the cone is 22.2 cm.

Step-by-step explanation:

Given that,

Slant height l = 28 cm

Radius = 17 cm

We need to calculate the height of the cone

Using Pythagorean theorem,

$l^2=h^2+r^2$

$h^2=l^2-r^2$

Put the value into the formula

$h^2=28^2-17^2$

$h=\sqrt{28^2-17^2}$

$h=22.2 cm$

Hence, The height of the cone is 22.2 cm.

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Topic : height of cone

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