The answer is 225.19 mm since you convert the 11.2 cm to mm which is 112mm and then use the equation pi x r^2 x h
You add or subtract depending on the equasion. if you give me an example then I can show you but it greatly has to do with the equsion.
Rectangle A=bh=4 x 3
Triangle A=1/2bh=1/2 x4 x3
The area of the figure
12+6=18
<span>-0.571428571 * -0.8 * -2.3333
</span>-0.457142857 * -2.3333
<span>1.06665143</span>
To begin with the vertical line is y and the horizontal line is x. There are two coordinates per piece of the graph. (X,Y) The first one right down the middle is (0,1) graph the first number being x and the second being y. hope this helps a bit