OK, good evening online community. So today in class we learned how to find the surface area of a cylinder. The fist step is to separate the 3d cylinder into many 2d diagrams. (look left)
After that you need to remember the formula for are of circles (r2)The height of the cylinder acts as the length of the rectangle and the circumference would be the width of the rectangle.
So the formula would be SA=2(π r2 )+2 π r h
the home-work assigned was pg.260 Q 1+2
in question 1 we where asked to find the curved surface area and in question 2 we where asked to find the surface area of the whole cylinder.
For question 1 you only do the 2 π r h piece and for 2 you use the whole formula.
Science
Recently in science we have satarted a new project for the water systems unit. I already explaned it in the last blog.
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