- #1
rocomath
- 1,755
- 1
Ok, so I have this picture. A semi-circle at the ends of a rectangle. It tells me that the perimeter is [tex]\frac 1 4[/tex]. So, isn't the total perimeter just the sum of the circle and rectange? [tex]P=2\pi r+2(L+W)[/tex]
[tex]r=radius[/tex]
[tex]W=2r[/tex]
[tex]P=2\pi r+2(L+2r)[/tex]
And isn't the total area just the sum of the areas? [tex]A=A_{circle}+A_{rectange}\rightarrow A=\pi r^2 + 2rL[/tex]
[tex]r=radius[/tex]
[tex]W=2r[/tex]
[tex]P=2\pi r+2(L+2r)[/tex]
And isn't the total area just the sum of the areas? [tex]A=A_{circle}+A_{rectange}\rightarrow A=\pi r^2 + 2rL[/tex]