0
$\begingroup$

I tried this question whole day but could not find its solution I have also not got a clue please help me in doing it

  • 0
    With such a terse problem statement, wholly contained in the title, you are short-changing your Readers. Please use the body of the Question to state the problem and explain where your difficulty lies.2017-02-12

1 Answers 1

8

Draw a triangle $ABD$ with $AB=5.5\,\mathrm{cm}$ and $\angle D=110^\circ$ and $BD=2.5\,\mathrm{cm}$. Then extend $BD$ and intersect with the line through $A$ at angle $70^\circ$ with $AD$ to find $C$.

This makes $\triangle DAC$ isosceles with $\angle C=40^\circ$ and thereby the conditions are met.

enter image description here

  • 3
    (+1) Nice solution. I took the liberty to add a diagram to improve it, I hope you do not mind.2017-02-12