The inscribed circle of triangle A B C is tangent to \overline{A B} at P, and its radius is 21 Given that A P=23 and P B=27, find the perimeter of the triangle.
The inscribed circle of triangle A B C is tangent to \overline{A B} at P, and its radius is 21 Given that A P=23 and P B=27, find the perimeter of the triangle.