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Guest
Guest
Hello everyone!
A 40 degree notch is cut to the centre of a solid cylindrical tin. The radius is 25cm. One plane face of the notch, is perpendicular to it's axis.
See diagram below.
How do i find the surface area of the notch?
I basically understand the formula for a surface of revoultion, but am unsure of my f(x) value to sub into that formula??
ANy assistance would be great.. Im currently looking at the area of a triangle and how my f(x) might = something like 1/2 radius times height, but im finding trouble expressing it..
Any help would be great!! Thanks
A 40 degree notch is cut to the centre of a solid cylindrical tin. The radius is 25cm. One plane face of the notch, is perpendicular to it's axis.
See diagram below.
How do i find the surface area of the notch?
I basically understand the formula for a surface of revoultion, but am unsure of my f(x) value to sub into that formula??
ANy assistance would be great.. Im currently looking at the area of a triangle and how my f(x) might = something like 1/2 radius times height, but im finding trouble expressing it..
Any help would be great!! Thanks
