If a triangle ABC, the incircle touches the sides BC, CA and AB respectively at D, E and F. If the radius of incircle is 4 units and if BD, CE and AF are consecutive integers, Find the lengths of sides of the triangle ABC.

In DeltaABC , the incircle touches the sides BC, CA and AB, respectively, at D, E,and F. If the radius of the incircle is 4 units and BD, CE, and AF are consecutive integers, then the value of s, where s is a semi-perimeter of triangle, is ______

Read the following passage and answer the questions that follow ABC is a triangle,the incircle touches the sides BC,CA and ABatD,E and F respectively. BD,CE and AF are consecutive natural numbers.I is the incentre of the triangles.The radius of the incircle is 4units.

In a triangle ABC, points P, Q and R are the mid-points of the sides AB, BC and CA respectively. If the area of the triangle ABC is 20 sq. units, find the area of the triangle PQR

If the incircle of Delta ABC touches the sides BC , CA,AB respectively are D(3,4),E(4,3),F(-3,-4) and the slope of internal bisector of |A is m, then |m|=