Find the square root of 1.21
2 answers:
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The cross product of two vectors gives a third vector 
that is orthogonal to the first two.
Normalize this vector by dividing it by its norm:
To get another vector orthogonal to the first two, you can just change the sign and use
.
Normalize this vector by dividing it by its norm:
To get another vector orthogonal to the first two, you can just change the sign and use
Cone's volume is 
where S - surface area, h - height
Surface area =
r = 18/2=9
h= 14
π = 3.14
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where S - surface area, h - height
Surface area =
r = 18/2=9
h= 14
π = 3.14