leah7378
04.10.2019 •
Mathematics
Can anyone tell me what the answer is?
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Ответ:
Ответ:
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.