Originally Posted by
dcowboys107 An equilateral arch is drawn about an equilateral triangle, having sides of length 7. For example, arc AC is a circular arc having center B. Calculate the area A of the equilateral arch.
I'm not really sure what to do with this one. . . I know that the angles of the triange are 60 degrees each. . . Hmm I know that there is a formula to find the area of an iscoles triange which is 1/2 sides squared theta but not sure if it's necessary here. Ik now the area of a sector is 1/2 radius squared theta in radiuns but not sure if that's helpful.