Question

Draw ∆abc given ab=9cm angle cab=115°.locatge its incentre and also draw the incircle.(note.you can check from the about examples that the incentre of any triangle is always in its interior).

Answer 1

Sorry l can't but mark as brain list

Answer 2

•draw a line segment AB=9cm

•With angle A as center draw angle CAB=1cm

•with B as center draw an angle of 40°

•Draw angular bisector for A and B

•join the arcs.the meeting of two lines is the incenter. It is denoted as I

•draw perpendicular bisector for AB below the line and join I and the two arcs .the point where the bisector bisects the line AB is marked as D

•the distance from I to D is in radius.If you did it right then when you draw a circle from the point I with the distance of I and D then the circle will fit inside the triangle.

I hope you understood these steps