three circles of equal radius r are pairwise tangent.find th

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/16 18:13:44

three circles of equal radius r are pairwise tangent.find the area of the shape which is contained by the arcs of the circles which start and end at the points of tangent.
Thank you.

翻译:三个等圆两两相切,半径为r,求三圆围成的面积.
连接三个圆心,出现一个等边三角形,要求面积等于三角形面积减去三个60度的扇形.
√3 r^2 - 3*1/6 * r^2*π
=√3 r^2-π/2 r^2
=(√3 - π/2)r^2
我居然给他做全套了...

find the slop of tangent line to the curve r=2+4sin 一道英文数学题.if three different circles are drawn on a piece of p 这么做这数学(find the equation of the tangent) three equal to square root of nine, Find an equation of the tangent line to the graph of the fun Find the equation of line tangent to the graph of f(x)=e+ln Find an equation of the line tangent to the graph of 4/x^4 a Find the unit vectors that are parallel to the tangent line Draw three circles on the Find the equations of the tangent line and the normal line t 1.Find the equation of the tangent to the curve y=x^2,which 求翻译:Find the equation of the tangent and the normal respecti