SOLUTION: slant height of frustum of cone is 5cm .if difference between radius of its two circular ends is 4cm .write the height of frustum.
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Question 694290: slant height of frustum of cone is 5cm .if difference between radius of its two circular ends is 4cm .write the height of frustum.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
make a sketch of its cross section and draw in the height
I see a right -angled triangle with height h, so that
...where and are of the base, is , and is
given:
the difference between radius of its two circular ends is
....plug in given values
as you can see, the infamous right-angled triangle
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