Question

give the answer in full procedure of no. 6

Answer 1

The answer is
A. an isosceles ∆le

I think this will be the answer
It may help you

Answer 2

Let the angles be A,B,C. (A>B>C)
BY CONDITIONS A= 60°+C and B=(A+C)/2
hence
B= (C+60°+C)/2=C+30°
now A+B+C=180°
or , C+60°+C+30°+C=180°
C=30°
hence , A = 60°+30°= 90°
So the triangle is right angle.
$get \: it$