Height of a cone is 30cm, its slant height is 32 cm, then the radius is- ?

Given:

Height of a cone is 30cm, its slant height is 34 cm.

To find:

The radius of the cone.

Solution:

Using the Pythagoras theorem, the relation between Height, radius and slant height is

Where, r is radius, h is height and l is the slant height.

Putting the given values, we get

Taking square root on both sides.

Radius cannot be negative. So, r=16 cm.

Therefore, the correct option is b.

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

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